Rixton

THE “HEART” BEAT: As we noted earlier, Schoolboy/Mad Love/Interscope’s Rixton is back in the iTunes Top 10 with “Me and My Broken Heart” today; the group’s performance on The Voice last night not only drove that retail explosion but also a 300% jump in mentions on social networks, where the pop troupe’s name was a trending topic. An Ellen booking followed their Voice spot, and they’ll be hitting the Today Show at the end of May. (4/29p)