Justin Timberlake has spoke openly about his use of drugs. The singer, who is currently in the UK to promote his second album, admitted that he has taken drugs in private and is careful not to be caught on camera. "The drugs that I do have been done in my own private time," he told the Observer Music Monthly magazine. "I've never been arrested - though that's not to say that I won't. I've done way too many drugs already. I've already inhaled and I've already - who knows?" "Some drugs haven't been legalised because it will ruin the other...