Dance on Sunset, hosted by Quddus Philippe (MTV's "TRL"), will feature a mix of musical acts, free-style dance competitions and a troupe of young dancers who will teach kids the latest moves. In addition, viewers can get in step each week in front of the TV and on a new complementary Web site. Stars slated to perform include Ashlee Simpson, Sean Kingston, Akon with Colbie and Menudo. Among the guest stars on tap are Janet Jackson, Omarion and Nickelodeon's Miranda Cosgrove ("iCarly") and the Naked Brothers Band.