The folks on Fortune's 40 under 40 list may be rising stars, but they're not perfect. Here are the decisions they most regret in their careers.
My biggest mistake was when I was a record executive I didn't sign Alicia Keys as an artist. ([In my defense], she didn't perform for me with a piano; I didn't know she was a complete musician.) --Mina Kimes
NEXT: Wendy Clark, Coca-Cola SVP