ROBBIE WILLIAMS - WILLIAMS TO COLLABORATE WITH 50 CENT?

British pop singer ROBBIE WILLIAMS is eyeing a collaboration with hip-hop superstar 50 CENT. The 33-year-old admits he has no idea what kind of music the odd couple would make together. Williams says, "I think me and 50 Cent might do something. "He called. Well, his people called. He's someone I wouldn't mind doing something with actually, thinking about it. "He's a bit like (MIKE) TYSON - softly spoken, but could f**k you up. And I want friends like that. He's like a teddy bear... with a gat. "I can't imagine what we'll do though."