Fun. star Jack Antonoff has turned to making music for pre-schoolers after signing on to create an album for U.S. children's show Super Why!.

It's not the first time the guitarist has dabbled in children's music - he recorded the Yo Gabba Gabba track It's Fun to Dance, and his former band, Steel Train, performed on tour with the Yo Gabba Gabba crew.

His new songs will appear on the Super Why! live tour this spring (13), Billboard reports.