Rihanna And Bruno Mars Perform On ‘X Factor’ UK

Either Bruno Mars or Rihanna is a pretty prime guest performer for a singing competition show. Both? Magic. The talented stars appeared on The X Factor UK’s results show tonight, playing their respective singles “Locked Out of Heaven” and “Diamonds.” Bruno brought a lot of energy, while Rihanna made it rain (literally — where’s that “Umbrella” when you need it?). Catch Bruno’s number after the jump.

Bruno Mars – X Factor UK

So who brought more to the show? Tell us what you think in the comments!