Champion bodybuilder Kevin Sperling will make an appearance at the Powerhouse Gym Saturday during the Kakaako Powerhouse Block Party.

Sperling's appearance will be sponsored by AquaHydrate Water. Sperling won first place in the Hawaiian Island Championships in 2007 and placed 10th in the 2007 USA Bodybuilding Championships.

Sperling's appearance will be part of the festivities that include Hawaii's Strongest Man Competition at the block party, located at 432 Keawe St.

The Strongest Man Competition features participants from the Mainland and Australia.

Here are some of the competitors:

Professionals:

Odd Haugen, California, 6-4, 299 pounds

Grant Higa, Washington, 5-8, 295 pounds

Josh Thrgpen, Texas, 6-5, 315 pounds

Jeremy Hogg, Australia, 6-4, 300 pounds

Brian Shaw, Colorado, 6-8, 370 pounds

Dave Ostlund, 6-7, 375 pounds

Tom Mc Clure, 6-3, 315 pounds

Brian Johnson, 6-5, 285 pounds

Amateurs competing:

Michael Prasser, North Carolina, 5-9, 300 pounds

Dan Harrison, California, 6-0, 280 pounds

Andrew Palmer, Washington 6-4, 295 pounds

John Dennis Jr, Penn, 6-4, 325 pounds

Andy Ramos, Kaneohe, 6-3, 370 pounds

Kama, Pacific Palisades, 6-2, 330 pounds

James Barentos, Kalihi, 6-2, 332 pounds

Vinni Afoa, Waianae, 5-11, 280 pounds

Ricky Larocca, Caifornia, 6-0, 330 pounds

Colin Keohuloa, Kona, 6-1, 270 pounds

Ryan Bakke, Arizona, 6-2, 300 pounds

Jonathan Conner, Kansas, 6-6, 385 pounds

Reggie Brown, Colorado, 6-4, 300 pounds

Pete Marcoff, Washington, 6-0, 290 pounds

The event will end with Power Jam Concert at 6 p.m. with Hoku's-award winning Kalapana, Three Plus, Ernie Cruz Jr. and Cory Oliveros.

Competitors will compete in the Farmers Walk, yoke, tire flip, log lift, truck pull and stones.

Farmers Walk: Competitors will carry 275 pounds 200 feet with a turn at 100 feet.

Tire flip: Challengers to flip a 1,000- to 1,200-pound tire 25 to 30 yards.

Yoke: Competitors will carry 800 to 850, 25-30 yards.

Log Lift: Challengers will try to clean and press an 8-foot, 275-pound log as many times as possible.

Truck Pull: Contestants pull a truck.

Stones: Challengers try to lift stones onto staggering height boxes with the tallest box at 6 feet, 2 inches.