Kyle Thomas "Rowdy" Busch (born May 2, 1985) is an American professional stock car racing driver and team owner. He is the driver of the No. 18 Toyota Camry in the Monster Energy NASCAR Cup Series and the No. 18 Camry in the NASCAR Xfinity Series for Joe Gibbs Racing. He also owns Kyle Busch Motorsports, which runs multiple trucks in the Camping World Truck Series. Busch is the 2009 NASCAR Nationwide Series champion and the 2015 NASCAR Sprint Cup Series champion.
Busch is the younger brother of 2004 NASCAR Nextel Cup Series champion Kurt Busch. He also currently holds several records in NASCAR competition, including the most race wins in a season across the top three NASCAR series, with 24 wins, which he accomplished in 2010. He has the second most all time wins in all three of NASCAR's national touring series with 182, 18 behind the 200 of Richard Petty. Furthermore, he holds the record for the most Xfinity Series wins in a season with 13 in 2010, and the most overall with 91.