No one knows you better than yourself... right?
Well, maybe not in this case!
Gwen Stefani and a Stefani Super-fan faced off in a mind-bending game of "Who Knows Gwen Stefani?"
Her opponent was a woman named Gaiane, who said she first became a fan at 15 and has attended over 100 Stefani and No Doubt shows.
Jimmy Kimmel explained that Stefani and Gaiane would be quizzed on Stefani's life and the winner would take home a personal belonging of their opponent.
For Gwen, it was a jacket and a bag from her sunglasses, Gaiane was offering her No Doubt vanity plate.
Wondering who won?
Check out the video below! (and ps...I bought the SAME album Gwen did back in the day!)