NEW YORK – Kevin Federline’s TV debut as a rapper is getting derided as a not-ready-for-prime-time disaster by critics in cyberspace and the hip-hop community.

On Sunday, Federline – also known has K-Fed and Mr. Britney Spears – performed his new single “Lose Control” to the peppy crowd at the eighth annual Teen Choice Awards, which aired on Fox. Introduced by his wife. Federline stalked about the stage with attitude as he rapped about his bling, popping Cristal and his amazing rhyming skills.

“Don’t hate because I’m a superstar! And I’m married to a superstar! Nothin’ come between us no matter who you are!” he declared, as dancers pop-locked at his side.

It was the most anticipated performance of the night – and the most ridiculed. By morning, videos of it were splashed on Web sites like YouTube.com and various blogs, accompanied by catty comments mocking both Federline and his wife.