The 'Glad You Came' band relayed their experience opening for Spears during her Manchester concert last year, confessing that they were not allowed to look at the 'Toxic' singer when she exited her dressing room.
"We signed a confidentiality thing that we should never say anything about what happened, but let's tell it anyway," Wanted member Tom Parker revealed during an interview on New York radio station Fresh 102.7.
Siva Kaneswaran said: "I was in the hallway with my tour manager. Basically we were looking with a laptop, trying to get WiFi... facing the middle of the hallway. [Britney's] bouncers came down with her and told us to face the wall."
Parker continued: "As Miss Spears is walking through. We're like, come on!"
"We turned around and I faced a wall for about 10 seconds until she got really far away," Kaneswaran added.
The Wanted recently called Christina Aguilera a "bitch", though Parker later said that he regretted the insult.
Watch The Wanted discuss Britney Spears below: