Which of you punks is behind it?

While everyone around me in the office gets magazines or free gifts from suppliers and PRs on a regular basis, I never really get any post. Until this morning, when a small CD-shaped package arrives. Understandably excited, and trying to work out if I've accidentally ordered something off Ebay without remembering, I tear away the bubble-wrap packaging on which my name and work address is typed.

Inside is a sealed envelope, with the word 'Bamos' written on it in black pen. Inside this, is a copy of 'I Think We're Alone Now' by Girls Aloud.

Who are you, you comedian? I'm laughing a lot. I win at post.