On June 17 , 2019 , it was announced that several of Megadeth 's shows of that year ( with the exception of MegaCruise ) would be cancelled due to Mustaine being diagnosed with throat cancer ; of all the cancelled dates , the band was supposed to support Ozzy Osbourne on the North American leg of the latter 's No More Tours II , which had been postponed from the summer of 2019 to the next year , and Megadeth was replaced by Marilyn Manson .
Musician Marilyn Manson replaced Megadeth on Ozzy Osbourne 's No More Tours II tour .