Anybody who's seen any teen romantic comedy worth its salt knows the makeover scene. It goes something like this (cue trendy pop song):
Cool friend takes dork friend to the mall. Dork exits the fitting room in a preppy outfit, friend shakes head. Dork tries on a rock-and-roll outfit with sunglasses, snaps fingers. Friend pushes dork back into fitting room. Dork emerges wearing the perfect outfit, looking better than friend. Friend gives one resounding nod. Transformation complete.