Since they made their debut in 1970, Aerosmith, consisting of lead singer Steven Tyler, lead guitarist Joe Perry, bassist Tom Hamilton, drummer Joey Kramer and rhythm guitarist Brad Whitford, has been a force to be reckoned with in the music industry.

The band is the best-selling American hard rock band of all time, and have embarked on countless of tours to entertain their biggest fans. Decades later, Aerosmith is still touring, but it isn't without interruption.

Gone are the days of performing for multiple days in a row without consequences on their health. In 2016, Perry collapsed onstage at a concert and it was later revealed that a cardiac arrest may have been the cause of it. Now, a little over a year since the guitarist's scare, the band has been forced to to cancel dates on their "farewell" tour due to Tyler's illness.

In a statement released by the band, they announced that at least four of their scheduled shows in South America have been cancelled so the lead singer can seek "immediate care."

The statement, which was posted on Twitter, simply read that Tyler is ill "due to unexpected medical issues." However, he is expected to make a "full recovery" once he receives "proper rest and treatment."

This isn't the first time that Tyler has struggled with his health. In 2006, he revealed that he had been suffering from Hepatitis C, and had to undergo extensive treatment that lasted for three years, including 11 months of inteferon treatment which he said was "agony."

That same year, the rockstar had to cancel tour dates after he woke up one morning and lost his voice. He underwent surgery to fix the ruptured blood cell in his throat.

A few years late, in 2011, the Aerosmith frontman and American Idol judge had a nasty fall in the shower after experiencing some dizziness and stomach pain.

Tyler did not disclose what the cause of his illness is this time around, but he released his own statement to reassure fans that he is "not in a life-threatening condition," and apologize for letting them down.

"I need to deal with this right away, and get some rest and medical care immediately in order to sustain and maintain my future performances... I promise I'll be back... unfortunately, health does not wait and it's something even I can't schedule around our shows... As they say, "˜We humans make plans, and God laughs...' I love you all and will be back with you soon," wrote Tyler.

We are glad that Tyler is expecting to return to the stage soon. Wishing him a speedy recovery!