NEW ON VH1: EDM meets rock divadom on "Sweet Nothing," a Calvin Harris concoction featuring Florence Welch. Also added: Ciara, "Sorry"; Flo Rida, "I Cry"; Gangs of Ballet, "Hello Sweet World"; Grace Potter & the Nocturnals, "Stars"; Muse, "Madness"; Owl City & Carly Rae Jepsen, "Good Time"; Psy, "Gangnam Style"; T.I. f/Lil Wayne, "Ball"; and Tristan Prettyman, "My Oh My." (10/26a)