Included on the group's 1972 album A Lonely Man, "Oh Girl" centers on a relationship on the verge of break-up.

1 single on the Billboard Hot 100, peaking at that position in May 1972 for one week.

The single also reached the top position of the Billboard R&B Singles chart the following month, remaining in that position for two weeks.

14 on the UK Singles Chart in July 1972, and was a UK hit again in 1975 when reissued as a double A-side with "Have You Seen Her", this time reaching a new peak of No.

The track was most prominently covered in 1990 by Paul Young, from his album Other Voices.