Float like a butterfly, sing like a bee… here’s Madonna proving she’s still The Greatest.

As the Material Girl approaches her 50th birthday this September she shows there’s still plenty of fight left in her.

Far from being on the ropes, she vowed to “kick all of their asses” as she promoted her new single with Justin Timberlake - who is young enough to be her son.

Wearing five-inch heels and boxing gloves, she said middle age was not going to slow her down.

“You’ve got a lot more experience and you tend to not make the same mistakes,” she tells Interview magazine. “It’s great to feel experienced. But I also work with people who are half my age, so I feel like I have to work even harder to keep up with everybody - but the fact of the matter is I can kick all of their asses.”

In a bizarre move, Madge has decided to release her single tomorrow as the theme tune to a shampoo ad, rather than in record shops or online.

The record - Four Minutes To Save The World - is about fighting poverty and disease.

And as boxer Muhammad Ali once said: “A man who views the world the same at 50 as he did at 20 has wasted 30 years of his life.”

Well that’s certainly not something anyone could ever accuse Madonna of…

Justin Timberlake is looking to bring viewers back to NBC.

The pop star is teaming with Reveille, the production company behind Ugly Betty and The Office, to bring the hit Peruvian comedy My Problem with Women to the Peacock net, NBC confirmed Friday.

Timberlake will serve as an executive producer on the project, which is based on Peru’s Mi Problema con las Mujeres, a show that launched in July and has since been sold in 20 countries.

“I am very excited to be collaborating with Reveille to bring this hugely successful format to NBC,” the singer said in a statement.

In other Timberlake news, Mr. SexyBack will be inducting none other than Madonna into the Rock and Roll Hall of Fame on Monday. The duo recently collaborated on the Queen of Pop’s upcoming album, Hard Candy, which is due out on Apr. 28.

Up ahead, Timberlake stars in the comedy The Love Guru, opposite Mike Myers and Jessica Alba. The film is slated for a June 20 release.

He is currently filming the drama The Open Road, opposite Jeff Bridges and Kate Mara.

(CBS) The music and video of 2007 were filled with lots of tunes to dance to, talent-filled and — some would say — unlikely collaborations, and hits by performers who became headliners on-and off-stage.

Damien Fahey, host of MTV’s “TRL” (”Total Request Live”), sorted through it all and came up with his selections for the best of the lot. He revealed many of them to Early Show viewers Friday.

“It was very dance-oriented year,” Fahey says. “It was all about the collaborative movement, which continued over from 2006. We had Justin Timberlake with Timberland, Rihanna working with hip hop artist “The Dream,” and Kanye West sampling a Daft Punk song. It was really about cross-genre promotion and creativity.”