Well, sort of. It's part of some sort of baseketball thing at Brixton Academy on 30 June. A bit more than £5 with fees and it finishes at 10pm, but still a pretty good deal. Dot Rotten is playing as well.

http://www.ticketweb.co.uk/user/?region=gb_london&query=detail&event=510224&interface=worldbasketballfestival