Robbie Williams' "prostitute" admission left Julia Roberts speechless as they both appeared on The Graham Norton Show this week. The singer sat alongside the actress as well as Colin Farrell, Benedict Cumberbatch and Gloria Estefan. After her performed his new single Pretty Face, Robbie sat beside Julia where he then talked about one of Julia's iconic films. Host Graham asked if he recognised the famous faces alongside him which is when he said how much of a fan he was of the actress. Graham