A judge has ordered pedophile rocker Gary Glitter to sign Britain’s sex offenders’ registry within 3 days now that he’s back in the country, the Press Association reports. Glitter reluctantly returned to the UK after being released from a Vietnamese prison, after serving time on underage-sex charges. The 64-year-old is best known for the sports-arena anthem Rock and Roll Part 2. (More Gary Glitter stories.)