Paramore Performs 'Ain't It Fun' with Jena Irene - Watch Now!

Hayley Williams of Paramore shows off her toned tummy while performing on stage during the season thirteen finale of American Idol on Wednesday (May 21) at the Nokia Theatre L.A. Live in Los Angeles.

The 25-year-old singer was joined on stage by finalist Jena Irene, who kicked off the performance by singing the band’s song “Decode.” They then segued into the current hit single “Ain’t It Fun” and it sure was a lot of fun!

“Close to show time for the guys and I! See y’all soon �”��”�,” Hayley tweeted before the show started.