Stephen Colbert Does Spot-On Mick Jagger Impersonation for Howard Stern

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Watch Stephen Colbert fully embody Mick Jagger!

Stephen Colbert fully embodied The Rolling Stones frontman Mick Jagger during an appearance on Tuesday's The Howard Stern Show that wowed everyone in the studio.

The new Late Show host jumped into Jagger's trademark peacock strut when asked about the Rolling Stones cover band that he led as a youngster. The 51-year-old father of three clearly hasn't lost a step since his boy band days.

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"We were called Shot in the Dark -- we called ourselves A S**t in the Dark because we sucked so badly," Colbert said.

Still, Colbert had no problems belting out 1971's "Brown Sugar," which he said was Shot in the Dark's go-to tune.

The excerpt from his Howard Stern interview provides some levity following an interview with GQ that took a serious turn. In it, Colbert candidly discusses how he copes with loss and suffering in his life.

"I'm very grateful to be alive, even though I know a lot of dead people," he said in the interview. " ... I was raised in a Catholic tradition. I'll start there. That's my context for my existence, is that I am here to know God, love God, serve God, that we might be happy with each other in this world and with Him in the next -- the catechism. That makes a lot of sense to me."

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Colbert's father and two of his brothers, Peter and Paul, were killed in a plane crash when he was 10, and he credited his late mother and his faith for not having become "bitter."

"I got that from my mom," he adds. "And my dad. And my siblings. ... I was left alone a lot after Dad and the boys died.... And it was just me and Mom for a long time. And by her example am I not bitter. By her example. She was not. Broken, yes. Bitter, no."

The Late Show With Stephen Colbert premieres Sept. 8 on CBS.