Things got a bit zig-a-zig-ah for actress Emma Stone, who was blown away by a surprise video message from her childhood pop idol Mel B.

Emma welled up when the Spice Girl popped up for a chat on screen during an interview with 2DayFM.

The 25-year-old had previously revealed she was a mega fan of the girl group but said it was Baby Spice Emma Bunton and not Scary who she wanted to be as a youngster.

Mel B had obviously caught wind of this telling the actress, “Your punishment for that is that I want you to do a rendition of one of the Spice Girls songs.”

When Scary Spice tells you to do something, you obey and Emma gave an emotional performance of Spice Girl classic Wannabe.