Country singer Dierks Bentley, classic shock-rocker Alice Cooper and a star from Disney's "High School Musical" are among the acts newly announced in the 2007 Iowa State Fair's lineup of Grandstand entertainment. Christian pop group Casting Crowns was previously announced. Country singer Gary Allan will launch the Grandstand lineup on Aug.
9 with opening act Erich Church. Two key weekend slots (Friday, Aug. 17 and Sunday, Aug.
19) have yet to be filled. The pre-teen demographic gets its own night at the Grandstand on Sunday, Aug. 12 with a show by young stars Corbin Bleu (of "High School Musical" fame), Nickelodeon's Drake Bell and Jordan Pruitt.
Tickets for Casting Crowns already are on sale. All other Grandstand events go on sale at 10 a.m.
May 19 through . The State Fair's ticket office will open July 5, with weekday hours from 8 a.m.
to 4:30 p.m. Also go to .