One fan of the Wanted just got a concert souvenir that she never knew she wanted: One of Max George's socks stuffed with Jay McGuiness' hair!

shaved the lovely curly locks on half of his head, leaving his left side even smoother than bandmate Max's signature chrome dome. Maybe he lost a bet or something? Or maybe he was channeling a video-game character, as one fan suggested via Twitter:

Jay showed off the crazy new 'do on Sunday (Sept. 29) at the SD2 Festival in Brighton, England -- but the hairy hijinks didn't stop there. Max put the clippings in one of his own black socks, then tossed the DNA-filled package into the crowd. The "lucky" fan who caught the hair-filled sock tweeted a selfie with the special souvenir. Her face shows a range of emotions:

One of a kind? Hmmm. maybe not. Jay has a lot more hair and there IS another sock out there missing its mate ...