Myself dressed as a girl.
Assuming the current version of me was located in the future. Or something. I've not really thought this through, have I. And that would probably count as incest anyway. Bollocks.

If my vote hasn't been spoiled I'm going for Debbie Harry circa 1978 and/or Elvis circa 1955.
(WANKERTRON you say "prick", I say "wanker", Tue 2 Jun 2009, 21:07, archived)