Posh's Birthday Party Spiked Girls

4/28/2014 7:25 AM PDT

Victoria Beckham's Birthday Party -- Spiked Girls

Victoria Beckham, Melanie Chisholm and Emma Bunton zig-a-zig-ahed their way out of a London club this weekend after celebrating Posh's 40th birthday party.

What they really want ... is a glass of water and a few aspirin.