Music-products maker Peavey Electronics has challenged the stars of TLC's hit reality show "American Chopper" to a custom-shop duel to celebrate the launch of its new online guitar custom shop, PeaveyCustomShop.com. The "Battle of the Builders" that pits Hartley Peavey and his designers against Team Teutul - Paul Sr., Paulie and Mikey Teutul and the Orange County Choppers crew - will unfold during two episodes of "American Chopper," April 12 and 19. The shows will chronicle the design process behind the Peavey Custom Shop OCC guitar and a Peavey-themed chopper that incorporates a working amplifier that really cranks.