A Gwen Stefani superfan has beaten Gwen Stefani in a quiz to find out who knows the singer best.

The No Doubt icon turned solo artist appeared as a guest on Jimmy Kimmel Live last night.

During the show, she went up against a fan – who admits she’s been to over 100 of the star’s shows – in a head-to-head game of ‘Who Knows Gwen Stefani?’.

“So she’s for sure gonna win.”

Stefani’s opponent did go on to correctly identify which Prince song the singer leant her vocals to and the name of the first song she ever wrote.

Stefani then spoke of the latter being featured on Barack Obama’s 2012 campaign playlist.

The superfan went on to take the overall lead. Celebrating her victory, she was awarded Stefani’s sunglasses, purse and one of her dresses.

Stefani reformed No Doubt in the interim period but returned to solo action in 2014 with the release of ‘Baby Don’t Lie’ and ‘Spark The Fire’ singles – the latter of which subsequently became the focus of a copyright infringement lawsuit.