The Relient K vocalist, who wrote Rebuild with Jon Foreman of Switchfoot, and George Thorogood have the profession of musician in common.
Matthew Arnold "Matt" Thiessen (born August 12, 1980) is a Canadian-American musician, singer and songwriter known for being co-founder, lead singer, guitarist, pianist, and primary songwriter for the Christian rock band Relient K. 
George Thorogood (born February 24, 1950) is an American musician, singer and songwriter from Wilmington, Delaware. 
"Rebuild" is a song written by Jon Foreman of Switchfoot and Matt Thiessen of Relient K. 
 The song was written in conjunction with the bands' 2007 Appetite for Construction Tour, featuring members from all three bands on tour, Switchfoot, Relient K, and Ruth. 
