unknown artist, performed in Holly's place at the next concert. Later, Jimmy Clanton, Frankie Avalon, and Fabian were hired to finish the tour in place of the three deceased headliners. As of January 11, 2017, with the death of Holly's tour guitarist Tommy Allsup, Dion is the lone surviving member of the original Winter Dance Party lineup. (The lone surviving Belmont, Angelo D'Aleo, was not on the tour, as he was in the US Navy at the time.) In March 1959, Dion and the Belmonts' next single, "A Teenager in Love", broke the Top Ten, reaching No. 5 on the Billboard Hot 100 and No. 28 on the UK Singles Chart. Written by Doc Pomus and Mort Shuman, it's considered one of the greatest songs in rock and roll history. It was followed by their first album, Presenting Dion and the Belmonts. Their biggest hit, "Where or When", was released in November 1959, and reached No. 3 on the Billboard Hot 100 with the group making another national appearance on American Bandstand. Although publicity photos show the group as a trio without Angelo D'Aleo, he performed on all of their recorded material; these photos were presented for promotional reasons owing to his departure to serve in the U.S. Navy. Other singles released for the group that year continued to chart on Billboard, but were less successful. In early 1960, Dion checked into a hospital for heroin addiction, a problem he had since his mid-teens. At the height of the group's success his drug dependency worsened. When "Where or When" peaked, he was in a hospital detoxing. In addition, there were financial and musical differences between Dion and members of the Belmonts. "They wanted to get into their harmony thing, and I wanted to rock and roll," said Dion. "The label wanted me doing standards. I got bored with it quickly. I said, I can't do this. I gotta play my guitar. So we split up and I did 'Runaround Sue', 'The Wanderer' and 'Ruby Baby'." In October 1960, DiMucci quit for a solo career. Now simply known as Dion, his first major hit, "Lonely Teenager", was backed by a female chorus. He eventually chose to work with the Del-Satins, who backed him (uncredited) on all his early Laurie and Columbia Records hits, which, besides the three aforementioned hits Dion quoted, also included "Donna the Prima Donna" ,"Drip Drop", "Lovers Who