Fashion Fails: Worst Celebrity Looks of the Week

Taylor's performance may have been the highlight of New Year’s Eve 2015 at Times Square, but her outfit was a total miss. We could practically hear her teeth chattering as she sang in subzero temperatures in a teeny tiny spandex getup. 

Roselyn Sanchez borrows her hubby's '80s prom suit for the People Magazine Awards at The Beverly Hilton Hotel. 

RiRi rocks Harry Potter’s invisibility cloak as she strolls through NYC – though the garment didn’t work its magic because unfortunately, we can still see her. 

Khloe Kardashian hosts a party at The Mirage Las Vegas in a black mini dress, but her outfit looks more appropriate for the star trapeze artist in a Cirque du Soleil act. 

Mariah looks like a drunken ski bunny while vacationing in Aspen over the holidays.

We’re all for ugly Christmas sweaters, but Perez’s is one of the most boring we’ve seen. 

Kat must have started sipping champagne early, because her outfit at the New Year’s Eve 2015 at Times Square suggests she got dressed while drunk.

Actor Terry Crews looks like he's wearing road kill while hosting New Year's Eve with Carson Daly at Times Square. 

How embarrassing! Singer Charlie XCX’s adult diaper is showing while performing alongside a very well-dressed Iggy Azalea on New Year’s Eve. 

Nasri’s 2015 style is off to a terrible start as he performs on New Year’s Eve in an infinitely unflattering yellow suit.