Season 8 - Adam Lambert
Lambert, credited as a singer, songwriter and actor, got his mainstream start as the runner-up on season 8. In late 2011, Lambert joined the iconic rock group Queen as lead singer, and toured with the band through 2012. Lambert released his second studio album entitled "Trespassing," which he produced himself, in March 2012. —XFINITY Entertainment Staff (Photos by Kevin Winter, Stephen Lovekin/Getty Images)
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