Usha Uthup, the unforgettable singer of Bollywood, was a part of the ‘Hare Rama Hare Krishna’ family. Having lent her voice to the title song of the 1971 film helmed by Dev Anand , today she is a proud woman that the riff of the Dum Maro Dum song from the film in question was played at the iPhone 13 launch (yesterday).