Whose pants?Whose pants?Oopsy... Has somebody struggled to get out of their car?

This lady has had a world of trouble trying to keep her panties under wraps.

But let's just be glad that she was wearing some.

So let this be a lesson to all celebs who are fans of the thigh-high hem lines.

Paps take no mercy... and this lady should really know better.

But whose white knickers are on display?

Well, she's a British pop star who's recently been hanging out Stateside.

Any ideas?

Fret not peeps, all will be revealed (like her pants), in our picture gallery of the mystery lady and a whole host of other celebs with their undies uncovered.