John Thomas Griffith is an American singer-songwriter best known as a guitarist and vocalist for the band Cowboy Mouth. Griffith first established himself on the American music scene in the early 1980s as lead singer and guitarist for the new wave band Red Rockers, co-writing their 1983 MTV hit "China".

Cowboy Mouth is an American band based in New Orleans, Louisiana known for fusing alternative rock with album-oriented rock, roots rock, and jam band influences. Formed in 1992, the band saw early mainstream success in the 1990s, including the hit single "Jenny Says". After disappointing album sales in 2000, they were dropped by their label, but the band has succeeded since then by focusing on live performances and independent-label releases. In 2011, the band was inducted into the Louisiana Music Hall of Fame.