David Guetta, Akon and Ne-Yo teamed up to turn the MGM Grand Garden Arena in Las Vegas, the site of the 2013 Billboard Music Awards, into Sin City's biggest and most star-studded dance party with their live rendition of 'Play Hard.'
What happens when you mix the sultry sounds of Ne-Yo with the sweet and soothing voice of Justin Bieber? You get one heck of a mash-up. The Biebs shared a ‘Fa La La / Sexy Love’ mash-up from YouTube user RaheemdaplayaO4 via his official Facebook page, and we have to agree with the 17-year-old ‘Baby’ hitmaker: “this is sick!”