Usher has been paid a massive half of million quid this weekend - just for appearing at a birthday party.
Businessman Andrew Williams paid out the massive fee to surprise girlfriend Katie Teague after hearing Usher was in the UK to perform at the Radio 1 Big Weekend show.
A pal tells the Sunday Mirror, "Andrew has previously hired Jamelia and The Darkness for private events. But Usher is Katie's idol."
Usher said Katie Happy Birthday at the celebrations at a London nightclub before performing his hit ‘Yeah’.
Despite receiving £500,000 for the gig, Usher slipped up at the Radio 1 show in Maidstone yesterday after bounding on to stage and exclaiming, “Hello Manchester!”
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