Britney launches her European tour in London… but only Z-listers Katie Waissel and Mark Wright turn up

Is this it Britney launches her European tour in London… but only Z-listers Katie Waissel and Mark Wright turn up

Green goddess: Britney Spears showed off her curves in a grey bodycon dress as she celebrated the launch of her European Femme Fatale tour

Green goddess: Britney Spears showed off her curves in a grey bodycon dress as she celebrated the launch of her European Femme Fatale tour

Red carpet treatment: The singer arrived with long-term boyfriend Jason Trawick, who looked relaxed in khakis and a checked shirt

Red carpet treatment: The singer arrived with long-term boyfriend Jason Trawick, who looked relaxed in khakis and a checked shirt

Comfortable: The couple looked relaxed as they sat on a sofa waiting to talk to journalists

Comfortable: The couple looked relaxed as they sat on a sofa waiting to talk to journalists

Ready to party: Reality star Mark Wright (left) and X Factor singer Katie Waissel were looking forward to meeting Spears Ready to party: Reality star Mark Wright (left) and X Factor singer Katie Waissel were looking forward to meeting Spears

Ready to party: Reality star Mark Wright (left) and X Factor singer Katie Waissel were looking forward to meeting Spears

I love London! Spears tweeted a photo of herself on her hotel roof terrace

I love London! Spears tweeted a photo of herself on her hotel roof terrace