'Ride it like it's a roller coaster, like it's just one track all the way through, and you'll never know when you're exactly upside down.' Johnny Knoxville, Bam Margera, Tony Hawk, and Mat Hoffman attempt 'The Loop.' #MTV #MTVVault #MTVClassic MTV Vault is the destination for all your favorite iconic MTV series - Cribs, Punk'd, Silent Library, and more! More from MTV: Official MTV Website: http://www.mtv.com/ Like MTV: https://www.facebook.com/MTV Follow MTV: https://twitter.com/MTV MTV Instagram: http://instagram.com/mtv