Hollywood producer Robert Evans had so much success with his first autobiography — “The Kid Stays in the Picture” — that it’s been reissued by HarperCollins. The publisher will also release Evans’ second memoir, “The Fat Lady Sang,” in November. At Book Soup in West Hollywood, where Evans, 83, was signing copies of the new edition of “Kid” on Wednesday night, he quipped of his next tome’s title: “The fat lady sang, but she forgot the last verse,” The Post’s Richard Johnson reports. There to support Evans — the one-time head of Paramount Pictures, where his credits included “The Godfather,” “Chinatown” and “Marathon Man”— were guests including Variety’s Peter Bart, Nikki Haskell, Michael Levine, A.J. Benza and Michel Comte, who shot Evans’ picture for the new edition’s flyleaf. More recently, the former playboy Evans has hosted the radio show “In Bed with Robert Evans” from his home and “Kid Notorious.”