"We Belong Together" is a 2005 hit song by Mariah Carey off of her album "The Emancipation of Mimi". The song is available in several versions. It reached #1 on the "Billboard" Hot 100 and stayed there for 14 weeks. With the song, Carey holds the record for having the longest-running and second-longest running songs at #1 in the US (her song "One Sweet Day" with Boyz II Men stayed on top for 16 weeks).