Demi Lovato and Doug Brochu are dressed to the nines in this new still from Sonny With A Chance.

In the upcoming episode “Promises, Prom-misses,” Sonny (Lovato) asks Marshall (Michael Kostroff) if she can have a prom on the set of So Random! since she’s missing her prom in Wisconsin. When Marshall refuses, the whole cast send him on a wild goose chase while they throw a secret prom. Meanwhile to prep for their prom, Nico (Brandon Smith) teaches Grady (Brochu) how to slow dance.

“Promises, Prom-misses” airs Sunday, May 3 @ 8:30PM ET/PT on Disney Channel.

For More pictures CLICK HERE.

-Source: JustJaredJr.