Look back at the 15-time GRAMMY winner's most memorable moments on stage at the GRAMMY Awards.

We caught up with the Thirty Seconds To Mars frontman to chat about the band’s latest album, his creative method, collaborating with Halsey and more.

The Chicago-born singer/songwriter performs his latest release, "Burn The Witch," letting his aptly self-described sound of "ecstatic joy and painful anguish" take you on a journey on the latest episode of the Recording Academy's newest video series, Press Play.

In this performance from The Recording Academy vault, GRAMMY winner Sam Smith sings "Have Yourself A Merry Little Christmas" on "A Very GRAMMY Christmas" in 2014.

In this performance from The Recording Academy vault, the multiple GRAMMY winner sings "Christmas (Baby Please Come Home)" on the CBS special "The GRAMMY Nominations Concert Live!!"

The pop and R&B-influenced violinist performs an original song, "Phoenix," letting his passion shine through on the latest episode of the Recording Academy's newest video series, Press Play.