Is Madonna too old to dress like this?

Madge reveals a little bit too much at last night's Billboard awards.

We all know Madonna has a penchant for pushing the boundaries when it comes to fashion.

But last night, she crossed the line with this scant outfit.

Nobody is arguing you've a great pair of legs, but you're 55 later this year… so put some pants on!

As this tweeter says…

She also accepted the award for Top Touring Artist.