Playback singer Shreya Ghoshal's charming soprano voice perks up any clip. She ramps up the energy in the colourful nightclub spectacle "Radha" (Student of the Year), evokes rainfall as a powerful positive life force singing "Barso Re" (Guru) and pours vocal tonic into the hard partying, drinking and hook-stepping of "Drama Queen" (Hasee Toh Phasee).