LOS ANGELES, Feb 21: British folk band Mumford & Sons jumped to No. 1 on the Billboard 200 album chart yesterday after their album “Babel” won a top Grammy honor, while several other Grammy performers received boosts on the U.S. Charts. “Babel,” which won the coveted Album of the Year prize at the Grammy awards on February 10, sold 185,000 copies according to figures from Nielsen SoundScan. The band also performed twice on the live television broadcast, which was watched by 28 million people. (agencies)