Listen to Let's Have Lunch online. Let's Have Lunch is an English language song and is sung by Andrew Lloyd Webber, Original Broadway Cast Of Sunset Boulevard, Alan Campbell, Vincent Tumeo, Sal Mistretta and Judy Kuhn. Let's Have Lunch, from the album Sunset Boulevard (Original Broadway Cast), was released in the year 2020. The duration of the song is 6:53. Download English songs online from JioSaavn.