The boys write the words and music for "MMMBop." Hanson first performs "MMMBop" onstage. They record an early demo version of "MMMBop." They later re-record "MMMBop." for their major record label debut. "MMMBop" tops the charts! The brothers make the rounds of award shows to sing "MMMBop." They thrill fans with an acoustic rendition of "MMMBop." Along the way, Hanson also gives many interviews in which they discuss their musical versatility.