Rihanna Wears Menswear Outfit In London To Switch On Christmas Lights: Yea Or Nay? (PHOTO)

There is no denying Rihanna's feminine wiles. The superstar flaunts her enviable figure almost every chance she gets (see: Twitter, Instagram and naked magazine covers).

But RiRi debuted a much more conservative, and some would say frumpy, look yesterday while in London on her 777 Tour. The "Diamonds" singer was on hand to spread some holiday cheer at the Westfield Stratford City shopping center by switching on the Christmas lights.

The oversized striped top and trousers are from Acne’s Spring 2013 menswear runway show and the equally large blue overcoat is from Raf Simon's mens collection. So, the look is clearly made for a man, but stylish enough for a woman. She added some girly touches with a bold red lip, sassy manicure, two fists full of rings and grey pumps.

It's a bit strange to see RiRi so covered up, but she definitely has enough swag to pull it off.

Fellow superstar Nicki Minaj also stepped out in a new look this week. Tis' the season for fashion risks? Seems like it.

Check out Rihanna's surprising get-up below--and the original looks from the runway.