Steven Tyler

Sometimes it's best to leave well enough alone.

These wild and crazy guys sound pretty good together.

Three-fifths of Aerosmith performed together during the Hollywood Bowl show.

The classic rock legends are jumping back in the saddle.

Aerosmith duo performed together last week at the VMAs' Ozzy Osbourne tribute.

The classic rock legends and young punk star recently shared the stage during the VMAs' Ozzy Osbourne tribute.

Yungblud and Nuno Bettencourt joined Aerosmith's Perry and Tyler for "Mama, I'm Coming Home."

These rockers previously honored the Prince of Darkness at Back to the Beginning.

"It's a long way to the top and staying there takes it out of you, especially an Aerosmith tour," guitarist said.

See dozens of onstage photos and candid backstage shots of rock and metal's biggest stars.