Fantasia is heading back to where it all started. The “American Idol” champ is scheduled to perform on Thursday night’s episode of the hit show. She will serve up the soulful “Collard Greens and Cornbread,” the new single from her third album Back to Me. The R&B songstress will share the stage with Jamie Foxx and will.i.am, who will debut their collaboration “Hot Wings (I Wanna Party)” off the soundtrack to the animated film Rio. Tune in tomorrow evening for a super-sized helping of star power.