Demi Lovato Fan Bites Security Guard in Rio Concert!

Demi Lovato livens up the arena while performing live on stage for her Neon Lights Tour stop at CitiBank Hall on Sunday evening (April 27) in Rio de Janeiro, Brazil.

“My fans are the bestest…. Rio, you rocked,” Demi later tweeted. “Apparently some girl BIT one of my security guards after she jumped on stage and I never even noticed..”