The success of "Alive!" not only brought Kiss the breakthrough they had been seeking but arguably saved Casablanca, which was close to bankruptcy. Following this success, Kiss partnered with producer Bob Ezrin, who had previously worked with Alice Cooper. The result was "Destroyer" (released March 15, 1976), Kiss's most musically ambitious studio album to date. "Destroyer", with its rather intricate production (using an orchestra, choir, and numerous tape effects), was a departure from the raw sound of the first three studio albums. Album art was designed by Ken Kelly, who had drawn Tarzan and Conan the Barbarian and also produced album covers for acts such as Rainbow and Manowar. While the album sold well initially and became the group's second gold album, it quickly dropped down the charts. Only when the ballad "Beth", the B-side of the single "Detroit Rock City", began to gain more airplay on FM radio did the album's sales rebound. The single was subsequently reissued with the A- and B-sides reversed. "Beth" peaked at No. 7 on the Billboard Hot 100, and its success led to an increase in sales for both the album (which achieved platinum status by the end of 1976) and concert tickets.