tour for True as Steel, Pesch spent time in the US with new manager Alex Grob to promote the band and arrange tours and recordings in America. At the same time, Szigeti and Rittel decided to leave the band, apparently unwilling to face the commitment that a transfer to the United States would involve. They were promptly replaced by the American musicians Tommy Bolan (formerly of Armed Forces), and Tommy Henriksen. With the new line-up, Warlock recorded in the US their fourth and last studio album, Triumph and Agony, produced by Joey Balin in 1987. Triumph and Agony was Warlock's best-selling album, going Gold in Germany and reaching number 80 in the Billboard 200 US album chart. The videos for the singles "All We Are" and "Für Immer", shot respectively in the Los Angeles river basin and in the swamps of Baton Rouge, were on rotation on MTV's heavy metal program Headbangers' Ball. Warlock toured Europe as support band for Dio and, after that, proceeded to make their first and sole extensive US tour, opening for Megadeth alongside Sanctuary. They played also several shows on their own with different opening acts, such as Fates Warning, Sword and Lillian Axe. Eurich and Arvanitis quit after the tour and were replaced by Bobby Rondinelli (formerly of Rainbow) and guitarist Jon Levin (sometimes mislabeled as Jon Devin). At the end of 1988, Doro Pesch remained the only original member and the only German still in the band. At this time, Peter Zimmermann, the band's ex-manager, sued for rights to the band name and merchandise, and won. Pesch continued to fight for the name, but conceded with record label requests to rename the band DORO in order to continue her career; the first edition of the LP Force Majeure, recorded with the final formation of Warlock, was the last one to expose a sticker with the name of the band next to DORO, with the exception of the compilation Rare Diamonds of 1991. Pesch eventually regained the rights to the name Warlock in 2011, after years of legal battles. DORO is an active band and still performs Warlock songs in their live shows. Other activities After his departure from Warlock, Rudy Graf joined the German speed metal band Rage in 1986 and recorded with them the album Execution Guaranteed. Today he's working as a studio musician and songwriter. Frank Rittel, Peter Szigeti and former