R.E.M. guitarist Peter Buck, 44, was arrested and charged on Saturday for assaulting two crew members and being drunk in the first-class section of a British Airways flight from Seattle to London, police said. The American guitarist was held in custody at Heathrow Police Station and is due for a court hearing on Monday. Reuters reports the R.E.M. is due to participate next Sunday in a South Africa Freedom Day Concert in London’s Trafalgar Square in front of Nelson Mandela and an anticipated crowd of 20,000.