American Idol

Adam Lambert's Most Memorable Songs

Relive his performances of "Mad World," "Whole Lotta Love," his medley with KISS at the finale and more

May 20

With voting over, Adam aimed to have a good time on the stage – and he did, singing with rock legends KISS in a pyro-heavy medley performance. And even though Kris Allen took the title, Adam told PEOPLE, "That, to me, was winning."