SAN JOSE, CA - DECEMBER 15: Mac Miller performs as part of Wild 94.9's Wild Jam at HP Pavilion on December 15, 2013 in San Jo
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Mac Miller has postponed four upcoming concerts in Australia and New Zealand, citing exhaustion and a worn-out voice following a grueling tour grind.

"Today, it is with regret that Mac Miller is announcing the cancellation of his upcoming tour dates in New Zealand and Australia," a representative for the rapper said in a statement. "After 3 long months on the road, playing over 70 shows in 90 days, he is postponing his trip due to exhaustion. Mac adds, 'Thank you to my loyal fans in Australia and New Zealand for all of the support over the years. I wouldn’t want to perform for you unless I was 100% healthy and on top of my game. I promise I will be back to rock with you guys soon.'"

Miller broke the bad news on Twitter, explaining, "I haven't cancelled anything in 5 years, but I found out I was human. Fuck. I thought I was a super hero…I'm not giving up on that theory." The acclaimed rapper was scheduled to perform in Gisborne, New Zealand this month, followed by three Australian shows in early January.

In September, Miller released his third solo LP, GO:OD AM, which features guest spots from Miguel, Ab-Soul, Lil B, Chief Keef and Little Dragon.