Washington, Jul 7 : Brit singer Kelly Osbourne has launched a vicious attack on American singer Stefani Germanotta, a. k. a. Lady Gaga, saying that the pop sensation "has everything" but a pretty face.

Osbourne, 24, the outspoken daughter of former Black Sabbath rocker Ozzy, admits that she finds the 23-year-old singer talented, but when it comes to her face, there is nothing much to boast about.

"She's a Butter Face - she has everything `but her face' (is unattractive). She reminds me of Peaches Geldof," Contactmusic quoted her as saying.

The singer also urged Lady Gaga to focus on her music rather than air her views in the media.

"I love Lady GaGa's tracks but I just wish she'd keep her mouth shut. She talks way too much and has too much attitude. It's starting to make me go off her," she added. (ANI)