It's the ultimate wedding guest gaffe - and even pop royalty isn't immune to making this sartorial mistake.

While Ginger Spice's wardrobe is dominated by the colour, some felt Geri, 53, should have picked a different frock for Mel C and Chris Dingwall's nuptials at The Country House in…

It's the ultimate wedding guest gaffe - and even pop royalty isn't immune to making this sartorial mistake.