It’s not a party until “Spice Up Your Life” plays. And when Posh Spice herself, known these days as Victoria Beckham, sings and dances along to the 1997 hit? Now that’s a true evening for the books. After putting on a well-received fashion show for her clothing brand over the weekend in a London art gallery space, Beckham was spotted at an after party getting fully back into her Spice Girls groove, singing along and jiving with gusto to the classic girl group hit.