Black Eyed Peas singer Fergie, whose real name is Stacey Ferguson, got engaged with her boyfriend, "Las Vegas" star, Josh Duhamel. America's Star magazine sustains that Duhamel proposed Fergie over the weekend in Philadelphia, where she was attending the Live 8 concert.

A source tells Star, "I know she isn't telling many people yet because she doesn't want it all over. But she is very happy. I don't think she knows what kind of wedding she wants yet, but I can see her just running off and eloping."

The couple met earlier this year when the Black Eyed Peas made an appearance on Duhamel's TV show 'Las Vegas.' Both Fergie and Josh were part of People magazine's 50 most beautiful people list in 2004

Fergie - real name STACY FERGUSON - recently said she refused to discuss her romance with Duhamel out of the public eye, because "it's much healthier".