The notoriously late diva kept her celebrity guests, which included the likes of Pixie Lott, Kelly Brook and Geri Halliwell, waiting more than three hours for her arrival.
But when she eventually made her entrance she did it in style, Mariah had requested £300k Rolls-Royce Phantom, which had been customised with a white leather interior and faux-fur.
Other guests at the club, which had been decked out with white roses, white drapes and vanilla and strawberry scented candles, included Alan Carr, Louis Walsh, Sinitta, Mark Feehily, Rupert Everett, James Corden, Lemar, Dominic Cooper, Mica Paris, Sir Philip Green, Lady Victoria Hervey and Brian Friedman.