Colleen Ballinger Is Obsessed with Mary-Kate and Ashley Olsen (Web Exclusive)

Also available on the NBC app

Colleen Ballinger discusses her past and present Olsen twins obsession that culminated with a recreation of their "I Am the Cute One" costumes for Halloween.

Appearing:Jimmy Fallon
Tags: The Tonight Show, Jimmy Fallon, Colleen Ballinger, obsessed, Mary-Kate, Ashley, olsen, Web Exclusive
S5 E161 minWeb ExclusiveTalk and InterviewLatenight