Perhaps to save us from Jason Alexander's take on "Relax," NBC has pulled the plug on its I'm a Celebrity But I Wanna Be a Pop Star competition, which had already begun casting and was being hyped with on-air promos. The surprise decision appears to stem from disagreements between NBC and the production company, Granada America, on production costs, says Variety. NBC's move clears the field for Fox's planned celebrity version of American Idol and Rick Schroder's take on "Relax."