Living Legends is a series that spotlights icons in music still going strong today. This week, GRAMMY.com spoke with Phil Collen, the guitarist of Rock and Roll Hall of Famers Def Leppard for more than four decades. Their latest studio album, Diamond Star Halos, was released in 2022; their new album with the Royal Philharmonic, Drastic Symphonies, is available May 16.
By any standard, the 1980s were a transitional era for popular music, a rubicon crossed.
That had a lot to do with emerging technology, which led some to sink and others to swim. While the drift to synths and sequencers left some classic rockers beached, artists from Madge to Prince and Paul Simon flourished. And that trial-by-digital gave us the one and only Def Leppard.
Def Leppard's new release, Drastic Symphonies, out May 16, acts as the opposite point of this arc, proving that the band is adaptable to both tech and the timeless nature of classical music.
Reimagined with the Royal Philharmonic Orchestra, Drastic Symphonies may be a program of hits (like "Animal" and "Pour Some Sugar on Me") and deep cuts (like "Paper Sun"), but it is far from typical.
Rather, Drastic Symphonies’ splendorous, cinematic treatment provides a window into their tunes’ innate malleability and longevity — while giving their legacy something of a consolidative This Is Your Life treatment.
"It gives it that third dimension that you always want to hear,” Phil Collen, their guitarist of more than 40 years, proudly tells GRAMMY.com over Zoom. “It was a beautiful experience, I've gotta say."
Collen's head is full of memories of that pivotal decade — the one where they were "selling sometimes a million records in a week." If you imagine Def Leppard as being rowdy and recalcitrant in the studio back then, like their current tourmates Mötley Crüe — think again. Under producer extraordinaire Robert "Mutt" Lange, they were perfectionists, breathing the maximum amount of imagination into every song.
"You have this image in your head, and it was creating it for audio," Collen recalls of the era that produced classics like 1983's Pyromania and 1987's Hysteria. "[Lange] always used to say, 'Look, we've got to create Star Wars for the ears."
Operating by that celestial edict, Def Leppard succeeded and then some: they've sold more than 100 million records worldwide, and were inducted into the Rock and Roll Hall of Fame in 2019. "We're ticking every box," Collen says. "And a lot of these boxes we didn't quite tick in the '80s."
Read on for a rangey interview with Collen about Diamond Star Halos a year on, the genesis of Drastic Symphonies and the state of Def Leppard.
This interview has been edited for clarity.
What's it been like living with Diamond Star Halos over the past year?
It's been great in the fact that we've actually been touring it, and it's been getting accepted as we've been playing it. You know, when you release a new album, it's like: no one really wants to hear it live. They just want to hear all the hot chestnuts — all the older stuff. But we feel this is genuinely, fully integrated into the live set. We're doing, like, three songs, and one of them we're doing acoustically.
I love the album, looking back at it. It's amazing. We felt like we celebrated our heroes on it — everything about the Bowie, T. Rex, Queen era. I think we hit the mark with that one.
Since Def Leppard is still an actively creative enterprise, how do you navigate that tension between the old and the new? You're not devoted to, as David Crosby memorably put it, "turning on the smoke machine and playing the hits."
Well, now you gave me an idea — we'll put the smoke machine on during the new songs!
We just follow the Stones' lead on that. Every time they go out, they carefully place a new song. They know they've got to do "Jumpin' Jack Flash" and "Satisfaction" and all that stuff. We just do that — we integrate it in there.
You've just got to be careful. It's great doing [it as a] first song, because you can use the theatrics of "Here we are." There's a lull at a certain point, and you inject something like that. We're very careful about where and when we put them in the set.
Who were your role models in the early Def Leppard days? Who did you look to and say, "I want to perform live, or make records, or have a career like them"?
It's always been the rock-ness of AC/DC but the finesse of Queen, and the great songs that Queen had. We like to tour like the Rolling Stones but have the caliber of appreciation of Queen. We're kind of getting there, to an extent. But they are the two pillars, I guess, that we kind of base the whole thing on.
Tell me about your relationship to symphonic music, and pave the road to the Royal Philharmonic album. Def Leppard and your peers have always had something of a symphonic sweep, so this seems like the most natural thing in the world.
It is. On "When Love and Hate Collide" and "Two Steps Behind," we had an orchestra. "Let Me Be the One," a song we did in the late '90s [and released in 2002, also did]. Especially ballads lend themselves really well to that.
This came up about a year ago, when we were over in England doing promo for Diamond Star Halos and getting the whole thing sorted out. It just got suggested by the label.
[The Royal Philharmonic] was doing this series of albums of bands like Queen and Pet Sounds by the Beach Boys. We wanted to be involved in it; we didn't just want an orchestra playing our stuff. So, we got into the arrangements; we got our string arranger guy who worked on Diamond Star Halos, Eric Gorfain.
It really worked. And some of the songs absolutely didn't work. They sounded wrong and kind of comical in some respects. We had to demo each song with a keyboard string arrangement, and it was really easy. It was like black or white, yes-no.
Were you in Abbey Road Studios, working with the string players on a hands-on level? What was the nature of the interchange between the band and orchestra?
They played all their stuff live. It was a year of preparation. Eric scored it all out. Ronan McHugh, our front sound guy and producer and everything, got in touch with the producer, Nick Patrick, and all of us met up at Abbey Road. We were there when strings were done.
That was really an icing-on-the-cake type thing. All the prep work had been done — on some of the songs, we'd leave guitars and drums out for whole sections and let the orchestra breathe.
But we'd done that all before, so it was just them literally playing to the conductor and us sitting in the control room hearing this wonderful cacophony coming back, of us playing with them.
Songs like "Paper Sun," which is kind of a deep cut off [1999's] Euphoria, just works so well with an orchestra. It gives it that third dimension that you always want to hear. So, yeah, it was a beautiful experience, I've gotta say.
I think we tend to think of classic songs as preordained — that they'd inevitably come into existence and bake themselves into culture. Back when you guys actually wrote and recorded hits like "Pour Some Sugar On Me," was there any attitude that would be modern standards 40 years on?
This is really funny, actually. I remember Mutt Lange, our producer, 37 years ago or something like that — someone came into the room and said, "The album's taking so long! Why do you spend so much time?" He said, "So that you'll be talking about it in 40 years." He actually said that!
Wow.
Certainly, Mutt Lange had the vision of it. We were just part of his vision!
Sounds like you guys were serious perfectionists in the studio — deeply focused on the product.
We were. And I think we overdid it a little bit, because we'd be there from 10 in the morning 'til 2 the next morning and not take weekends off. As we've gotten more experience, we found that if you have a cut-off point, you actually get more done.
It was gangbusters, the whole thing. It was trying to make something that no one had ever done before in that format. It really worked, but we do have to thank Mutt Lange for that.
In what regard do you think you guys overdid it? Were you scrapping arrangement after arrangement? Were you doing take after take after take?
With the time, actually. You have this image in your head, and it was creating it for audio.
[Lange] always used to say, "Look, we've got to create Star Wars for the ears." And a song like "Rocket" literally was that. Even when we play it now, it's got such immense proportions, and we have this screen and all that stuff. You have this mental image, and you have this stacked-up vocal thing, which takes ages to do. Just singing them over and over, like Queen did.
We did that with the guitars as well. We made orchestrated guitar things, and not gratuitous. There's a big difference between just overdoing it and then doing it for a reason where it actually works and enhances the song; it always comes back down to the song.
Like I said, Mutt knew what he was doing, but back then, we were following his lead. It would be scrapping guitars and adding new parts and copying strings on a guitar with an EBow.
That reminds me of the Boston template, as per their debut album — a brainiac trying to create perfect, idealized rock songs — but it's an actual band with a producer.
About a year ago, I heard this BTS song and thought, "This actually sounds too good. It sounds almost like AI." I don't know whether it was or not.
I know these days a lot of writers will come in. There was this Beyoncé song where they said, "There's 23 writers!" and everything. And I get that. I really understand how that could be. You want to create the best that you can; you have a top-line guy that comes in, you have a drum programmer guy, you have someone writing the lyrics and all of that stuff.
We were kind of doing that back then with Mutt, but it was internal. It's like: OK, we need a melody. We've got this lyric; that works here. That was the approach, and I think it's a similar thing now.
With AI, I think that we are going to hear that. Like I said, I heard this BTS song and thought, This is so amazing. But could a person do that? I had my doubts. Maybe not. Perhaps it was a collective.

Phil Collen performing with Def Leppard in 1983. Photo: Fryderyk Gabowicz/Picture Alliance via Getty Images
With Drastic Symphonies on the way, how would you characterize the artistic and professional juncture that Def Leppard is at?
It's great. We're ticking every box. And a lot of these boxes we didn't quite tick in the '80s, when it was massive and we were selling sometimes a million records in a week, which is crazy, just the thought of it.
But there were still a few things that we didn't do. When we finally got into the Rock and Roll Hall of Fame, that kind of propelled us forward a little bit. Doing an album like this, but actually having a say in it and going, "We'll do it if we can do it this way."
We're actually doing the stadium tour now. We did one last year, which was great, with Mötley Crüe. We're still on tour with them and having such a blast. Grown-up kids at school together, just having that extreme thing.
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