The diva has landed: Jennifer Lopez's extraordinary list of hotel demands

The designer clad diva partied with billionaire retailer Sir Phillip Green at West End club Annabel's last night following her arrival in London for a whistle-stop promotional tour for the launch of her new Spanish-language album and forthcoming single.

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J-Lo made sure to fit in a party last night during her whistlestop tour of London to promote her new single

Wild thing: Jennifer looks ready to go wild in her leopard print one-shouldered dress

And as is standard for most celebrities, Lopez made sure to send her hotel, The five-star Dorchester, a detailed two page list of everything needed to ensure she enjoys her reported two-day stay.

According to a source, it included requests for the usual bottled water, soft drinks, lilies or red or white roses.

Plus Grapefruit and Lime Blossom candles from the celebrity's favourite beauty guru, Jo Malone.

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Jennifer and husband Marc Anthony, right, hit the London party scene with billionaire pal TopShop owner Phillip Green

No doubt heads will roll if she gets peanut instead of the requested plain M&M's. And she clearly has a sweet-tooth as she's included a request for baked cookies.

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Demanding diva: Jennifer Lopez has landed in London for a two-day promotional tour with a long list of diva demands

The diva is back: Critics have hailed her new single as a return to form

If recent speculation which centres on a possible pregnancy are to be believed, the absence of alcohol, apart from a request for low-calorie beer, could be seen as significant.

But she took time out at the launch party at Kensington's Amika nightclub last night to quash reports that she is expecting her first child, shaking her head, she said: "No, that's not right."

However, J-Lo's actions did little to back her claim later that night. While her husband Marc Anthony swigged on bottles of beer, she stuck to the water, while dancing to her own tunes in the main room of the club after shunning the white VIP area which was decked out with lilies and plush Jo Malone candles especially for her.

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The singer and actress needs candles, flowers a microwave and plain M&M's among a two-page list of requests to ensure she enjoys her stay

Despite staying in one of London's top hotels, home to several restaurants and dining rooms including Kate Moss's favourite restaurant China Tang, Lopez's list includes a request for a distinctly unglamorous microwave, coffee maker, toaster and an oven.

Clearly third-time married Lopez is quite the little home-maker.

But with her sixth studio album 'Brave' due for release in October, she's obviously not ready to hang up her dancing shoes just yet.

Which is fortuitous as critics have hailed new single 'Do It Well', released in the UK October 1, as a return to form for the latino superstar.

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A radiant J-Lo has officially denied the speculation surrounding a possible pregnancy

One American reviewer, the Billboard Review, has described the new single as "a satisfying, flamethrowing pop-urban pearl befitting top 40 hits from Rihanna and Kat DeLuna."

And new pictures released from the video, directed by acclaimed photographer David LaChapelle, see the star in a series of stunning outfits including a tight black ra-ra number and canary yellow mini-dress.

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Jennifer leaves the Dorchester Hotel after her stay in London

J-Lo and Marc Anthony bid farewell to the capital

Speaking about the album, Jennifer Lopez told MTV: "I'm really excited about it. The first single will be out this summer. And, you know, it's very different from my Spanish album.

"My Spanish album was kind of an opportunity to get away from what I do on my English albums, to kind of express a different side of myself.

But judging by the long list of demands, it's business as usual for the forthright diva.

Jenny from the Block's list of demands