During recording of the all-important first programme, more than a third of the studio audience walked out, saying they were bored and complaining it was "horrible" and "limp".
(So-called friends: Fans wait to see Lily Allen tape her pilot episode. The queue to leave Friday's show was almost as busy)
One of the fans who walked out said: "Everyone really, really wanted it to work for Lily. She is such a lovely person but all the jokes fell flat and she seemed very nervous. It just did not work.
"I do think she's got a nice voice but she didn't sing at all. I think everyone was expecting she would."
(Lily after a night on the town on Friday. The singer's still recovering after her miscarriage and split from ex-boyfriend Ed Simons)
Off-camera, the 22-year-old, who was wearing a slinky red off-the-shoulder dress, admitted she was nervous of her first test as an interviewer, quizzing guests Cuba Gooding Jnr, comedian David Mitchell and the band Reverend and the Makers.
As well as her inexperience, Miss Allen had to fight technical glitches including a jammed Autocue, which left her reliant on handwritten cue cards.
One guest said: "We were all standing about, getting quite tired.
"She was halfway through her interview with David Mitchell when she seemed to forget the questions and launched into an attack on all the horrible things people had written about her on online chat forums.
"It was terrible. Even David Mitchell had to remind her not to criticise the very people who would be watching the show."
Miss Allen then showed a series of internet videos showing animals having sex. Cuba Gooding Jnr summed up the mood when he told the audience: "I don't know what's sicker, animals having sex or you clapping."
Another guest said: "We were all told when to clap and laugh but a lot of people, including me, were very uncomfortable. Much of the humour was very limp."
It looks as if Lily Allen should really concentrate on singing career instead,not everyone could be Tyra Banks even though she can't sing.
