Hot on the heels of our first Celebrity Geek, we caught up with globetrotting superstar DJ and producer Deadmau5 in this video.
Nominated for three Grammy awards, Deadmau5 is in the middle of a punishing world tour and itching to get back to the studio to work on a new album. But he still took time out of his busy schedule to talk to us exclusively about making music on an Atari ST, his love of social media and what the deal is with wearing a giant electronic mouse's head all the time. What a gent.
Mr Mau5 was in London courtesy of Nokia, who had booked him to play the Millbank Tower to celebrate the launch of its new Lumia 800 smart phone. And we don't mean playing in the Millbank Tower -- we mean turning the riverside landmark into a 120-metre high video wall and belting out electro house tunes across the Thames.
Licensing restrictions meant the gig was only allowed to be half an hour long, but thousands of fans braved the chilly weather to witness the flashing lights and booming basslines. If you missed it you can see the best bits in the video above. And if Nokia's stunt has piqued your interest in their phone, you can find out what we think of it in our Nokia Lumia 800 review.
Which sleb do you suspect of being a secret nerd? Let us know in the comments below or on our Facebook page, and we'll do our best to track them down.