Singer Lady Gaga has apologised for collaborating with R&B singer R. Kelly in 2013. Gaga took to the microblogging site Twitter and posted an apology stating that she stand “1000% with the women”. R Kelly has been accused of sexually assaulting women and underage girls. Gaga’s comments come after release of a documentary over R Kelly. Gaga had called the stories absolutely horrifying and indefensible. Kelly, however, has downright denies all allegations and vowed to sue people involved in production of the documentary.