Bruno Mars graced the stage during the live results show of Britain’s “X Factor” last Sunday. Channeled James Brown, the Grammy-winning and chart-topping artist crooner and his band delivered a rockabilly-inspired live rendition of “Runaway Baby” which appears on his celebrated debut Doo-Wops & Hooligans. Be on the lookout for the video for “It Will Rain,” the lead single from The Twilight Saga: Breaking Dawn, Part 1, to premiere Wednesday at 7:54 p.m. on MTV.