Despite T.O.S.: Terminate on Sight doing decent sales G-Unit managed to release a third single. In an interview with G-Unit, Tony Yayo explained the track "Straight Outta Southside" is his favorite track off the album, with "T.O.S. (Terminate on Sight)" being Lloyd Banks' and "Close to Me" being 50 Cent's, hence "Close to Me" being the third single.
Originally "Party Ain't Over" was going to be the fourth and final single, but due to unimpressive sales of the album a fourth single was never made, which makes "Close To Me" the third and final single from the album.