Mick Jagger and Keith Richards have announced the Rolling Stones will stop performing hit song Brown Sugar, amid discomfort about the 50-year-old classic's references to slavery. The band, currently on the road for a 13-date U.S. tour, have not played Brown Sugar - one of their most recognizable songs - since kicking off in St Louis on September 26. The 1969 song has been a staple of their live show since it came out 50 years ago, and is the second most played song in their catalog after Jumpin' Jack Flash, with 1,136 known performances, according to Rolling Stone magazine....