Matt Thiessen and Lowell George, both are Americans of which common occupation?
Matt Thiessen 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. With Relient K, he has released eight full-length albums, including three that were certified Gold, and three that peaked in the top twenty on the "Billboard" 200. Outside of his work with Relient K, Thiessen maintains a low-profile side project called Matthew Thiessen and the Earthquakes. In 2009, he co-produced and collaborated on Owl City's album "Ocean Eyes".
Matt Weitzman Matt Weitzman (born November 13, 1967) is one of the creators of "American Dad!" along with Mike Barker and Seth MacFarlane. MacFarlane has credited Weitzman and Barker with "American Dad!"' s success and longevity, stating that they have been in charge of creative direction over the series. Barker and Weitzman were originally writers for Family Guy. Weitzman has also written on twelve television shows including "Daddy Dearest", "Off Centre" and "Damon".