The Glasgow and Scotland winger, who will retire at the end of the season, has promised to revive the spiked peroxide blonde look that he sported in his breakthrough years.
But he has one condition...
He's asking fans to donate 5000 pounds to two very deserving charities: The Glasgow Children's Hospital Charity and Hearts & Balls (which provides help for severely injured Scottish rugby players).
Warriors take on Edinburgh at Scotstoun on 6th of May, so to make sure Sean goes blond, and help out two very worthy causes, visit his JustGiving page here