AceShowbiz -

Has been the subject of media scrutiny due to her wild-partying habit, Lily Allen sent another shock to public when she exposed her breast during a chat show. The troubled pop star apparently exposed one of her breasts during a recording of her BBC Three chat show "Lily Allen and Friends," it has been claimed.

Allen was interviewing English stand-up comedian and comedy actor Patrick McGuinness, famous for starring in the BAFTA-nominated British sitcom "Phoenix Nights", when she is said to have exposed her right nipple and started to "play with it." "Lily and Paddy were both quite lively. They were sitting on the sofa and she pulled out her right boob. Everyone in the audience was doing a double take as Lily sat there with her breast hanging out," Rob Difrancesco who witnessed the moment told Digital Spy.

"Paddy was trying to grab her breast and he joked to Lily that she was arousing him. That's when she started playing with her nipple," Rob continued saying. "She was playing to audience and kept it out for about three minutes. It was surreal."

In other Allen news, she is reported to have withdrawn from her role as one of the five judges for the Orange Prize For Fiction, citing "health issues" as the reason for her withdrawal. A spokesperson for the "Smile" singer explained that Allen had been reading books as part of the first stage of the judging process, but "ill health" has forced her to pull out of judging the British book award competition for women writers.