their first-ever music video "Over the Wall" on MTV's Headbangers Ball, the band quickly managed to increase their exposure by heading out on successful North American and European tours with Anthrax, who were supporting their Among the Living album. On this tour, the Live at Eindhoven EP was recorded. Testament also opened for Slayer as well as their labelmates Overkill, and Megadeth on their Peace Sells... but Who's Buying? tour. Testament's second album, The New Order, was released in May 1988, and found the band continuing in a similar vein. The album was a minor success, peaking at number 136 on the Billboard 200, but managed to sell over 250,000 copies on the strength of the airplay of "Trial by Fire" and the cover of Aerosmith's "Nobody's Fault" (through radio and television), as well as relentless touring schedules. In support of The New Order, Testament opened for Megadeth on their So Far, So Good... So What! tour in Europe, and toured the United States with the likes of Overkill, Voivod, Death Angel, Vio-Lence, Nuclear Assault, Sanctuary, Raven, Forbidden and Heathen. They also made a number of festival appearances in the summer of 1988, such as Metalfest in Milwaukee, Aardschokdag in The Netherlands, and replaced Megadeth for some dates on the European Monsters of Rock tour, also featuring Iron Maiden, Kiss, David Lee Roth, Great White and Anthrax. By the time The New Order tour ended in early 1989, Testament had not only cemented their reputation as one of the most acclaimed thrash metal acts, but had also graduated to headlining their own shows. Commercial breakthrough (1989–1992) Testament released their third studio album, Practice What You Preach, in August 1989. The album minimized the occult and gothic themes found in the lyrical content of their first two albums, instead focusing on real-life issues such as politics and corruption, and while staying true to its thrash metal roots, it saw the band drawing influences from traditional heavy metal, jazz fusion and progressive/technical metal. Practice What You Preach was a commercial breakthrough for Testament, reaching at number 77 on the Billboard 200, and it was accompanied by three singles (the title track, "The Ballad" and "Greenhouse Effect") that received significant airplay from AOR radio stations and MTV's Headbangers Ball, further helping raise the band's profile. Testament toured for almost a year behind Practice What You Preach with several bands, including Overkill, Annihilator, Wrathchild