Ashton Kutcher's "punking" days are behind him, and he's now living the life dedicated to Peek-A-Boo and pacifiers. Wednesday night on The Late Late Show with James CordenKutcher, his That 70s Show co-star Danny Masterson, and Corden formed the ultimate Dad Band to sing about fatherhood. 

Complete with Baby Bjorns and funky stroller choreography, this is a great glimpse into what One Direction will be like if they're still together by the time they all join Louis and have children.