Jimmy Kimmel sent his intrepid Lie Witness News crew to the streets outside the Staples Center where Justin Bieber was performing to see just how blindly his fans will follow him.

"It turns out the answer is very, very blindly," said Kimmel, who tested the Beliebers' devotion to their idol by making up stuff about Bieber and asking the fans if they approved.

Among Justin's alleged antics: Peeing on the flag and punching his own grandma in the stomach during a game of cribbage.

For what it's worth, she was clearly cheating.

(BTW, if you're out of the Kimmel loop and wondering what's going on with his eye, watch this.)

[H/T: Daily Picks and Flicks]