It's been another busy week, and once again our favourite musicians have been using Twitter to let off steam. Here's what we've learnt from their posts, including Courtney Love dissing Arctic Monkeys and The Horrors, Andrew WK proving he still parties hard (especially when it comes to sandwiches), Lady GaGa's band spotted allegedly getting up to no good by Grizzly Bear's Edward Droste, and Jon McClure's stag do hitting Ibiza.