<P> The band regrouped back at Ridge Farm to record Diary of a Madman between February and March 1981 . Tensions between Ozzy / Sharon and Daisley / Kerslake over contract issues regarding their names, money, credit, and royalties got worse, which led to Sharon firing Daisley and Kerslake in March 1981 . Ozzy, Sharon and Rhoads went back to the United States to look for a new drummer and bassist . </P> <P> In March 1981, former - Black Oak Arkansas, Pat Travers and Gary Moore drummer, Tommy Aldridge, and former - Quiet Riot bassist, Rudy Sarzo, were hired . Blizzard of Ozz was released in the United States and Canada on March 27, 1981 and it became a success . "Crazy Train" and "Mr. Crowley" were released as singles and "Goodbye to Romance", "I Don't Know" and "Suicide Solution" received radio airplay . The album eventually went platinum . </P> <P> In April, the band began rehearsals for the North America leg at Swing Auditorium in San Bernardino, California . On April 22, the band kicked off the North America leg of the tour at Towson Arena in Towson, Maryland in front of a sold - out crowd . Throughout the first half of the North American leg of the tour, the band was supported by English heavy metal band Motörhead . Other bands would be added, such as Joe Perry, The Outlaws and Mountain . On April 28, the band went to Channel 31 (WUHF) TV Studios in Rochester, New York to film a live performance of "I Don't Know", "Suicide Solution", "Mr. Crowley" and "Crazy Train," which were broadcast on the After Hours TV show as live promo - videos . </P> <P> On May 11, the live recording of the Cleveland Music Hall performance was broadcast live over the local rock radio station and became as the first 13 tracks on the live Tribute album . On July 4, the band performed as the special guests in front of their biggest crowd at Bill Graham's Day on the Green Festival where they were supported by "415" (the opener) and Loverboy while Pat Travers, Blue Öyster Cult and Heart performed afterwards . </P>

Who did def leppard tour with in 1981