Jessie J is a creative sort of chick, yesterday she devised a new game to keep herself, and the crowds entertained while they waited for the hotly-anticipated surprise act at Radio 1's Hackney Weekend.
Happy festival goers crammed round the main stage to see just who would take to the mic, rumours in the mosh pit (where omg! was standing of course) was that Beyonce, Justin Bieber or Cheryl Cole would be performing.
[Related story: Jessie J channels Cheryl Cole at Hackney Weekend]
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And it looked like Jessie J and the other celebrity guests waiting in the wings were equally as clueless, as they waited for the big reveal.
But instead of just standing still in her monochrome ensemble, Jessie J did her best to keep the crowd's energy up first of all waving to fans and then conducting cheers.
Yes, the songstress milked the screams from the crowds — inventing an even more waiting-for-event game than the Mexican Wave.
Jessie raised her hands to hear the cheers then lowered them to stop.
And we were pretty surprised to witness the crowds decision to play along but hey, it killed some time and got us suitably hyped for the surprise act who turned out to be Dizzee Rascal.
We spied Jessie dancing along to the collection of hits that got everyone slushing their wellies in the mud — there's no where you can stand still to Dance Wiv Me.
Or for that matter Holiday, especially as the sun had come out once again to touch down on Rihanna's closing set.