Heath Ledger has apologised to New York shock jock Howard Stern after snubbing him at a Manhattan restaurant recently. Sirius radio presenter Stern was furious when Ledger and fiancee Michelle Williams ignored him and his girlfriend Beth Ostrosky when they approached the BROKEBACK MOUNTAIN stars. But Ledger has called to apologise, after reading of Stern's anger in the New York Post newspaper. He said, "Michelle and I were in a very deep conversation about something in our personal life. I was admittedly a little out of it. I apologise if we came off horribly." Williams' father LARRY WILLIAMS RICHARDS was recently arrested on international tax evasion charges.