<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 Do n't Know '' , `` Suicide Solution '' , `` Mr. Crowley '' and `` Crazy Train , '' which were broadcast on the After Hours TV show as live promo - videos . </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 Do n't Know '' , `` Suicide Solution '' , `` Mr. Crowley '' and `` Crazy Train , '' which were broadcast on the After Hours TV show as live promo - videos . </P>
who did def leppard tour with in 1981
who did def leppard tour with in 1981
Motörhead
Motörhead