Teresa Jane Davis, known professionally by her stage name TJ Davis, is an English singer, songwriter and record producer. She started as a backing vocalist for Gary Numan, D:Ream and Blur, and quickly developed a career of her own. She is known for her work with composer Richard Jacques on video game music for the soundtracks of Sonic R and Metropolis Street Racer. She was a member of ABBA tribute group Björn Again, performing as 'Frida Longstockin' from 1997 to 2004.

Her track, "Brilliant Feeling", billed as "Full Monty Allstars featuring TJ Davis", peaked at No. 72 on the UK Singles Chart in July 1996. She also released the trance single "Wonderful Life" - a cover of the song by Black - in December 2001. It was a collaboration with trance outfit Ian van Dahl, and reached No. 42 on the UK Singles Chart. In 2002, Davis recorded the vocals on the Sash! song, "I Believe".