Usher thanks fans for helping him through 'tumultuous times'

Usher thanked his fans for helping him though ''very tumultuous'' during the final night of his 'URXTour' at The O2 in London. The 36-year-old star admitted his supporters have seen him through the ''ups and downs'' of his career during the final night of his 'URXTour' at The O2 in London. Speaking to the crowd, he said: ''You know, it's been some time since I've been back here at The O2 and I mean, I feel this way most of the time, but I sense that no matter how many days, weeks, months, years ...