Britney Spears' Hair Extensions Fall Out Mid-Performance

Britney Spears' Hair Extensions Fall Out Mid-Performance, Britney Spears endured a slight hair snafu during her Planet Hollywood "Piece of Me" Las Vegas residency show on Friday night.

Midway through a performance of "Do Something" a clump of the pop princess' blonde hair extensions fell to the ground as she kept on dancing. (The show must go on because nobody has time to worry about losing a few tracks of hair while there are 4,500 screaming fans to entertain.)

Spears launched her Vegas show back in December 2013 and has been performing three nights a week ever since.

During an early show, she also suffered a small wardrobe malfunction when her costume's zipper opened up totally exposing her back. Ever the professional, Spears kept on going as her backup dancers rushed to zip up the costume, and the show carried on.