You Keep Me Hanging On, You Keep Me Hangin' On, (You Keep Me) Hanging On, and finally, (You Keep Me) Hangin' On were the four titles for two different songs.
The more popular song was the 1966number one song by The Supremes, with popular remakes by Vanilla Fudge, Wilson Pickett, Jackie DeShannon, Reba McEntire, and Roni Hill. Two artists remade the song as medleys as shown. In 1987, Kim Wilde hit number one with the song again. In 2009, Glee Cast did the song.
The other popular song with this title was a 1968number 16 hit for Joe Simon, which was remade by Cliff Richard and Ann Peebles.