Aerosmith has been forced to cancel both of their remaining 2022 concerts as frontman Steven Tyler continues to recover from an undisclosed ailment.

The Dec. 7 and 11 concerts of the band's Deuces are Wild Las Vegas residency have now been called off, bringing the total number of shows they've canceled this month to four.

"We are so sorry to announce we are cancelling these last two Las Vegas shows," the band announced via Twitter. "On the advice of doctors, Steven has to sit these out. Stay healthy and we'll see you in the new year!"

The band's Dec. 2 show was the first to be called off. Though Aerosmith initially said Tyler was “expected to make a full recovery for Monday night’s Las Vegas show,” the performance, scheduled for Dec. 5, was also later canceled.

“On the advice of my doctor, I’m taking more time to rest,” Tyler explained when announcing the second show cancellation. “There is nowhere we’d rather be than on stage surrounded by the greatest fans in the world.”

The group initially announced their run of 2022 residency dates in March, with plans to perform in Vegas in the summer. However, those shows were pushed back as Tyler entered rehab.

"As many of you know, our beloved brother Steven has worked hard on his sobriety for many years," the band wrote at that time. "After foot surgery to prepare for the stage and the necessity of pain management during the process, he has recently relapsed and voluntarily entered a treatment program to concentrate on his health and recovery.”

Aerosmith has been celebrating their 50th anniversary this year, including a massive performance at Fenway Park in their hometown of Boston. More recently, Tyler joined Eminem on stage during the rapper’s induction into the Rock & Roll Hall of Fame.

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