2 x VIP tickets to sonisphere festival
Sonishphere Festival 8th - 10th July at Knebworth (near Stevenage on A1M) about half hour from north london.
Metallica, Slayer, Slipknot, Limp Bizkit, Motorhead, Bill Bailey and many more http://uk.sonispherefestivals.com/line-up/
Competition is to like the festival on facebook and change your profile picture. Seeing as this is quite an invasive thing to do I reckon there's a reasonable chance of winning.
Winners every day. Full details here