Lady GaGa's performance on a U.K. talk show was dramatically halted when her bizarre iPad-style dress split and fell open.

The singer was entertaining the audience on funnyman Alan Carr's show this week (beg02Dec13) with a rendition of her track Dope when the drama happened.

The quirky pop star had arrived on the set wearing a white bodice containing a working computer screen, but it fell apart during her performance, so Gaga was forced to stop the show and fix the dress before starting again.

During her interview, she spoke of her love of marijuana and also told Carr she had urinated in a trash can backstage - just as she did before appearing on the same show in 2011.

She said, "Yeah, I did a wee in the bin today too. The toilet is such a long way down the hall."

Explaining to Carr how smoking pot helps her escape from the pressures of fame, Gaga added, "The thing that I fell in love with about it is that I completely forget that I'm famous. I totally forget about it all. I take a puff and I'm me when I was 17 again in my white go-go boots looking for a job, and there's something quite creative and liberating about that."

Gaga's interview will be broadcast on Alan Carr: Chatty Man in the U.K. on Friday (06Dec13).