<p>"American Idol" runner-up Diana DeGarmo is heading for Broadway.</p><p>Following in the footsteps of Frenchie Davis, who appears in the rock musical "Rent," DeGarmo will join the cast of "Hairspray" on Feb. 7.</p><p>The 18-year-old DeGarmo, one of the FOX television series' most popular runners-up, will portray the heroine's best friend, Penny Pingleton, in the musical, which opened on Broadway in August 2002.</p><p>DeGarmo, of Snellville, Ga., finished second behind Fantasia Barrino in the third season of the popular Fox "American Idol" reality show.</p><p>"Hairspray," based on the cult John Waters' film, concerns a chubby Baltimore teen who wants to appear on a TV dance show. The show now stars Shannon Durig as the eager young woman and John Pinette as her full-figured mother.</p>
