Harry Nilsson recorded "Baby, I'm Yours" as a medley with "Just One Look" for his 1976 album ...That's The Way It Is.
Written by Van McCoy, the song was originally recorded in 1965 by Barbara Lewis. Her single reached #11 the Billboard Hot 100.
Baby, I'm yours
And I'll be yours until the stars fall from the sky,
Yours until the rivers all run dry
In other words, until I die