Listen to The Heat Is On (Live) online. The Heat Is On (Live) is an English language song and is sung by Miss Saigon Original Cast, Jon Jon Briones, Hugh Maynard, Alistair Brammer, Rachelle Ann Go and Eva Noblezada. The Heat Is On (Live), from the album 101 Broadway Musicals, was released in the year 2015. The duration of the song is 4:40. Download English songs online from JioSaavn.