James "Bo" LeMastus[1] (born January 8, 1963) is an American businessman, professional racing driver, and former team owner.

LeMastus began as an intern at Modern Marketing Concepts in 1983, while studying for a business degree at Western Kentucky University.

In 1994, the company acquired the Crosley name from the former company operated by Powel Crosley Jr.[2][3][4][5] In October 1998, LeMastus and a group of investors purchased the defunct Charlestown Motor Speedway stock car track in Indiana, converting it into the Podium One Motoplex motocross track.

[11][12] LeMastus continued to own DGR-Crosley with David Gilliland until 2021, though he remained involved in the team in a marketing role.

[14] His series debut ended with his truck flipping and sliding into the wall, which resulted in a red flag that cut nearly half the race distance due to time constraints.

[16] LeMastus increased his SST involvement for August's Music City Grand Prix as Crosley provided naming rights for the series, dubbing it the Crosley Stadium Super Trucks, and sponsored him and four other drivers (Jacob Abel, Arie Luyendyk Jr., Ricky Johnson, Jeff Ward).