Neil Sedaka, the prominent singer-songwriter whose string of hits in the 1960s and '70s included "Laughter in the Rain," "Breaking Up is Hard to Do" and "Calendar Girl," has died, a representative confirmed to CBS News on Friday. He was 86."Our family is devastated by the sudden passing of our beloved husband, father and grandfather, Neil Sedaka," a statement from the family read. "A true rock and roll legend, an inspiration to millions, but most importantly, at least to those of us who were lucky enough to know him, an incredible human being who will be deeply missed." A cause of death was not immediately available. Singer Neil Sedaka performs onstage at Saban Theatre on April 5, 2019, in Beverly Hills, California. Scott Dudelson / Getty Images Sedaka was a Juilliard-trained, Brooklyn-born son of a Jewish taxi driver who began performing as a teen and kept at it for decades. At 9 years old, Sedaka had already begun intensive classical piano training at the Juilliard School.…