Listen to O Mere Saathi Re online. O Mere Saathi Re is a Hindi language song and is sung by Kishore Kumar, Lata Mangeshkar and Salil Chowdhury. O Mere Saathi Re, from the album Happy Birthday Hit Of Mithun, was released in the year 2015. The duration of the song is 4:46. Download Hindi songs online from JioSaavn.