After Viacom's purchase of CBS, MTV was selected to produce the Super Bowl XXXV halftime show in 2001, airing on CBS and featuring Britney Spears, NSYNC, and Aerosmith.[170] Due to its success, MTV was invited back to produce another halftime show in 2004; this sparked a nationwide debate and controversy that drastically changed Super Bowl halftime shows, MTV's programming, and radio censorship.