Ron Jeremy, the famous pornster immortalized on one of WeHo’s Pornstar Blocks of Fame, is in critical condition at Cedars-Sinai Medical Center, recovering from heart surgery. TMZ.com reported that Jeremy, whose most famous endowment is physical not financial, drove himself to the hospital on Tuesday after suffering chest pains. His manager, Mike Esterman, says Jeremy has had two surgeries and is resting. Jeremy, 59, is recognized by the Guinness Book of World Records as the actor with the most adult film appearances (some 2,000). His memoir, “Ron Jeremy: The Hardest (Working) Man in Showbiz,” was published by Harper Collins in 2007. His footprints are in cement in from of the Hustler store on Sunset Strip.