Tammy Boness & The Swingin' Mammaries are a rock and roll revival and oldies band featured in Grand Theft Auto 2. They have one known single: "The Diner", which is heard on Lo-Fi FM and Lithium FM, respectively listed as the third song and the second song on the radio stations. The song has a sound reminiscent of 1950s soul music.
The version of "The Diner" featured on Lithium FM has defects such as static, record skipping, and stops sometime after the halfway point due to Spaz Funbags' frustration with the record, while the version on Lo-Fi FM has no such defects.
The band's name is a reference to nudity and breasts, while Tammy Boness' name could be a reference to the Scottish town of Bo'ness.
"The Diner" was written and produced by Craig Conner and Julie Wemyss, with vocals provided by Wemyss and guitars provided by Stuart Ross. Together, they produced music for another band featured in Grand Theft Auto 2, Conor & Jay.