Watch: Britney fires back at heckler who calls her a 'fat bitch'

A video of Britney Spears calling out a heckler at her Vegas residency this week has appeared online. After finishing a performance, Britney asked the crowd if they "wanted one more," which led a group in the audience to shout that the legendary singer is a "fat bitch," reports Digital Spy. Britney1 Not one to lie down and take it, Britney shouted that the hecklers were "fucking assholes" before she launched into a performance of her 2012 hit Till The World Ends. Watch unapologetic Brit below: http://instagram.com/p/1hiEk3EZCw