Britney Spears 'the Grammys can kiss my a**'

Britney Spears isn't likely to make a surprise appearance at tonight's Grammy Awards.

When the troubled pop princess was asked if she had any intentions of attending tonight's ceremony, the one-time Grammy winner yelled, "Kiss my a--!" at the awaiting paparazzi following a session at Millennium Dance Studios in North Hollywood Saturday.

The Toxic singer, 26, spent about two hours rehearsing at the dance studio Saturday.

Sporting ripped fishnet tights, her favorite brown boots and with her newly caramel hair in a knot on top of her head, Spears took two smoke breaks and spoke briefly in her now infamous British accent.

Her father Jamie checked up on her around 5:45 p.m.

The singer left solo in a chauffeured Escalade at 6:30 p.m.