Thomas Joseph Lavin, better known as TJ Lavin, has an estimated net worth of $9 million. He is an American BMX rider, professional musician, and host of MTV’s The Challenge since its eleventh season. He first began to ride bikes at the age of two and raced BMX until the age of 15. He then gave up racing and turned to dirt jumping who turned pro at the age of 19. He has won almost every competition during the X Games and the Dew Action Sports Tour. He took three bronze, one silver, and three gold (one was Australian) in the X Games. He has been a DK Dirt Circuit Champ, a champion in the Gravity Games, a European championship winner, and a CFB Champion. He was crowned the “King of Dirt” in 1995. He is also the subject of a photorealist painting titled King of Dirt. Among his current sponsors include S&M Bikes, Headrush, Monster Energy Drink, Lavs Lab, and Kicker.

TJ Lavin has released his own album called LAVS the First SET. He released the single "Soldier" in 2008 that is a tribute to his long time friend Stephen Murray. He is also the subject of the film A Film about TJ Lavin and has appeared on an episode of MTV’s Cribs. He has a video game named after him called MTV Sports: TJ Lavin’s Ultimate BMX.