During a game of ‘Never Have I Ever’ on Ellen Justin Timberlake sheepishly admitted to hooking up with a Spice Girl. See video of the game on Ellen below.
It looks like we now know it was Emma Bunton aka Baby Spice. Emma was flustered when asked if she had hooked up with Justin in this interview in 2004. Skip to the 7:21 mark to see Emma answer the question.