Madonna’s appearance on David Letterman yesterday was absolutely hilarious. The Material Girl joined Dave for her eighth appearance on the show in a jovial mood as she laughed off rumors about her impending wedding to toyboy lover Jesus Luz and had her FIRST ever slice of New York City pizza (she’s not a cheese person).

The 51-year-old singer, who has been dating the 22-year-old Brazilian model for nine months, says she’d rather get ‘run over by a train’ than walk down the aisle again. Her response comes after claims by Madonna’s biographer Randy Taraborrelli that she hoped to marry Luz before the end of the year. Letterman asked the singer whether she thought she would fall in love again. ‘I’ve lost perspective, I don’t know,’ she replied.

There to promote her new best of hit collection “Celebration” which was released this week, Madonna arrived in the studio riding in like the queen that she is on the shoulders of the NY Rangers hockey team. The interview didn’t get off to a great start, with Letterman saying: ‘Listen Madonna, Madge, how are you?’ She replied: ‘You know that’s one of the reasons I left England, so I don’t have to hear the word Madge again. People say it means two different things. Some say it is a colloquialism for a boring middle-aged housewife – others say it is short for majesty.’

Madonna’s eighth appearance on the show was much lighter than previous ones, which includes an infamous 1994 encounter in which she branded Letterman a ’sick f***’ and told him the only reason she had come on stage was because there was ‘no escape.’ Madonna said of the incident: ‘Every time I’m on the show I feel like a different person. I think I may have made a fool of myself once or twice on your show but it wasn’t because I was excited about you – I think it may have had something to do with the joint I smoked before I came out.’

Madonna went on to say, ‘Last time I was on I had three kids and I was married and you had one kid and weren’t married.’ Letterman said: ‘You were married eight years right?’ Madonna replied: ‘Yeah – the Bush years. It was a good time to be out of America.’

The pop star refused to comment about last years rumors that she was dating New York Yankees star Alex Rodriguez. Letterman said: ‘Here in New York City there was a time we came to associate you with a professional sports star?’ Joked Madonna: ‘Only one?’  Referring to Letterman’s recent scandal over a joke he made about Sarah Palin’s daughter and A-Rod, she added: ‘Didn’t you almost get arrested for bringing up A-Rod’s name?’

The interview ended with both Letterman and Madonna going to a New York pizza parlor, where the macrobiotic singer sampled her very first pizza.

‘What do you like on your pie?’ asked Letterman. Replied Madonna: ‘That’s a very personal question. You mean what do you like on top?’

The pair eventually settled on a cheese-free pizza with tomato sauce and black olives and  proceeded to walk to Angelo’s Pizza next door and were served slices of cheese-less pie.