R&B vocalist Usher has been keeping his music career on the backburner while he works on several TV and film projects, and the singer will be on location in Toronto this week to film an episode of the Disney TV series "The Famous Jett Jackson."Usher will portray a villain named Zander Hall, a.k.a. "The Z-Ride," for the episode, which will also serve as the opener to the third season of "Jett Jackson." In the production notes, the character of Zander Hall is described as a "world-class skateboarder and computer hacker who has been stealing the nation's security codes." The episode, titled "Step Up," will be filmed from March 20-22, and the new season of "The Famous Jett Jackson" is scheduled to begin airing on the Disney Channel this summer. Fans can also look forward to seeing Usher on the big screen in the summer, as the singer has also finished filming a part as a six-gun sharpshooter in the new western "Texas Rangers" (see "Usher Riding To Big Screen With 'Texas Rangers;' Plans New Album"). "Texas Rangers," which also stars James Van Der Beek, Rachael Leigh Cook, and Dylan McDermott, is due out on August 25.