Mark Stewart (born August 16, 1961), known by his stage name Stew, is an American singer-songwriter and playwright from Los Angeles, California, United States. In the early 1990s, he formed a band called The Negro Problem and later went on to release albums under his own name. His 2000 release Guest Host was named Album of the Year by Entertainment Weekly and his 2002 album, The Naked Dutch Painter and Other Songs, repeated that feat. He toured in support of Love's Arthur Lee in 2002 and in 2003 he was invited to take part in the Lincoln Center's American Songbook series of concerts.
Stew and Heidi debuted a new show, "Making It," at St. Ann's Warehouse in Brooklyn in February 2010.
In December 2011, The Repertory Theatre of St. Louis announced that its 2012 new theatre series, Ignite!, would feature a reading of a stage musical adaptation of the graphic novel, Stagger Lee, with a book by the graphic novel's author, Derek McCulloch, and music and lyrics by Stew and Heidi Rodewald.