One of the breakout stars of “Bridesmaids” — besides Melissa McCarthy — was Rebel Wilson, who played the female half of Kristen Wiig’s weird brother-sister roommate duo. Remember? She got the Mexican drinking worm tattoo from some guy in the back of van? Well, Wilson next appears as an exceedingly normal bride in “Bachelorette,” a dark comedy that also stars Kirsten Dunst, Isla Fisher, and Lizzy Caplan as the bitter and drugged out friends who are planning her bachelorette party. Rebel appeared on “Jimmy Kimmel Live” last night to promote the film, and the Australian talked up her teenage appreciation for American “gangsta rap” group Kriss Kross. She and her sister — who’s amazingly named LIBERTY — performed their songs at talent shows. To prove it, Rebel rapped some of their lyrics — and was decidedly not wiggity-wiggity-wack.