British pop prince Robbie Williams' attempts to romance model ELIZABETH JAGGER have fallen flat.

Persistent Williams has smothered the 18-year-old daughter of ROLLING STONES front-man Mick Jagger with phone calls and flowers since meeting her in New York earlier this month (MAR03).

But friends of Jagger say the singer has pushed himself too far.

A pal says, "Robbie has gone completely over the top. Since jetting back to Los Angeles, he's spent a fortune on sending her flowers. He's pretty confident he'll win her over time."

But Jagger is back with on-off boyfriend Michael Wincott and thinks Williams is a bit of a joke.

Jagger's friend says, "Unlike Robbie, Michael is on her wavelength. Elizabeth is not into rock stars. She thought Robbie would have got the hint by now. Robbie is just not her type."