MadBum, the nickname given to MVP and local hero Madison Bumgarner, who, in part, helped the San Francisco Giants clinch their third World Series in just five years, appeared on The Tonight Show last night. Also making an appearance? His underwear on Jimmy Fallon's derrière.

Shorty after the Giants won the Championship, Jockey unveiled "MadBum" underwear, a limited edition pair of sharp-looking skivvies emblazoned with the "MadBum" logo smack-dab on the badonk.

Watch Tonight Show host Fallon put on a pair. Then buy some for yourself.