Robert Kelly Thomas (born February 14, 1972) is a German-born American musician. He is the lead vocalist for the Florida-based alternative rock band Matchbox Twenty, which he formed in 1995 and with whom he has released five studio albums. His 2005 single, "Lonely No More" was his first to be released as a lead solo artist. It peaked at number six on the chart and led his debut solo album, ...Something to Be (2005), which peaked atop the Billboard 200.
As part of Matchbox Twenty, Thomas has written and performed their string of commercially successful singles, including "Push", "3AM", "Real World", "Back 2 Good", "Bent", "If You're Gone", "Mad Season", "Disease", "Unwell", "Bright Lights", "How Far We've Come", and "She's So Mean". Thomas has also been a credited songwriter for other artists including Willie Nelson, Mick Jagger, Marc Anthony, Pat Green, Taylor Hicks, Travis Tritt, and Daughtry. In 2004, the Songwriters Hall of Fame gave Thomas its first Hal David Starlight Award, which recognizes young songwriters.