Headliners will be pop star/American Idol winner Kelly Clarkson on Saturday, Aug. 8, country singer Dierks Bentley, Wednesday, Aug. 5, and rock performers Alice Cooper Tuesday, Aug. 4, and Ratt on Friday,    Aug. 7.

Fair week kicks off with the annual Firemen's Parade Monday, Aug. 3, following its usual route from East Market Street to Weaver Street, into the fairgrounds and past the grandstand for judging. A fireworks display will follow the parade.

Tuesday, Aug. 4, will feature The ZOOperstars on the grandstand at 10 a.m. for the Children's Day show. The ZOOperstars' act has been described as outrageous, zany, unpredictable and hysterical. The combination of animalistic superstars perform at more than 200 shows per year where "they bounce, they shake, they dance and they just flat out jam. The ZOOperstars will rock the house with routines that fans of all ages will love," according to information on the Web site.

Tuesday, Aug. 4, Alice Cooper is bringing his own brand of rock to fans both old and new. The site notes, "The iconic hard rocker, who literally invented the concept of the rock concert as theater, returns to what he does best on ‘Along Came a Spider,' the 25th studio album of a long and illustrious career which began in 1969. Known as the architect of shock-rock, Alice has rattled the cages and undermined the authority of generations of guardians of the status quo."

Wednesday, Aug. 5, turns to country, as Julianne Hough opens for headline act Dierks Bentley.

Called "a triple threat as a singer, actress and dancer, Julianne Hough (pronounced "Huff") is already known to fans as the two-time professional dance champion on ABC-TV's top-rated ‘Dancing with the Stars.' ... Her debut disc reveals her appreciation for country music's roots as well as ... the genre's future. She was named Academy of Country Music's Top New Female Artist at the 2009 ACM Awards."

Mr. Bentley is "among the most successful and relevant country singers in the business. ... After spending more than two years writing, road testing and recording new material, Bentley is ready for the next phase: on Feb. 3 he released "Feel That Fire," a 12-song serving of rockers and ballads with a dash of honky tonk and bluegrass. On Aug. 5, Dierks Bentley will strike a match and invite fans to ‘Feel That Fire' at the 149th Clearfield County Fair."

Full Pull Productions returns to the fair on Thursday, Aug. 6, with its truck and tractor pull. The fair's Web site notes that the show is scheduled to have the street four-by-four trucks, modified four-wheel trucks "hot stock" semi-trucks, super stock tractors and more.

On Friday, Aug. 7, Marky Ramones Blitzkreig is the opening act. Marc Bell, aka Marky Ramone, is best known for the 15 years he spent drumming for the Ramones, made famous by its part in Roger Korman cult classic  "Rock ‘n'  Roll  High School." In 2001, the  Ramones  were  the first  punk band  to  be   inducted  into  the   Rock  ‘N'  Roll  Hall of Fame.

Friday night's feature is 1980s glam metal band Ratt. According to the fair's site, "The return of "Ratt ‘n' Roll" - the band's motto - became a reality earlier this year when founding members - vocalist Stephen Pearcy, guitarist Warren DeMartini and drummer Bobby Blotzer - launched a summer tour, their first together in eight years.

"Ratt has sold more than 16 million albums worldwide and established itself as one of the most popular groups of the 1980s. ‘Out Of The Cellar' sold more than 3 million copies and rocketed into Billboard's Top Ten on the strength of its first single, ‘Round And Round.' ... A long line of hit songs and videos that made Ratt a fixture on the radio and MTV as well as a major live act playing to sold-out crowds across the nation."

The week's entertainment wraps Saturday, Aug. 8, with music by Kelly Clarkson, with opening act Eric Hutchison.

Mr. Hutchinson is a pop singer-songwriter and pianist who gained fame with his self-recorded and released album "Sounds Like This." Other discs he has released include "That Could've Gone Better" and "Before I Sold Out."

Ms. Clarkson, the site notes, "was catapulted into the spotlight in 2002 as the very first ‘American Idol' winner.

"Her superstardom was secured with ‘Breakaway' in 2005. That album sold over 10 million copies, spun off five Top Ten hits, and stayed on the charts for two full years. ... She has sold over 20 million records around the world; landed eight singles in the Top Ten; and won Grammys, MTV Video Music Awards, American Music Awards, and even been nominated for a CMA Award."