The bassist will join Scott Gorham and Damon Johnson, vocalist Ricky Warwick and keyboard player Darren Wharton at gigs throughout Europe this summer (16).
Hamilton will also hit the stage with Thin Lizzy on the Rock Legends V Cruise, which sets sail from Fort Lauderdale, Florida in January (17).
Announcing the news on Monday (18Apr16), he said, "I'm really psyched to be playing these shows with Thin Lizzy during my downtime with Aerosmith this summer. It'll be great to rock out to their classic songs onstage."
Hamilton was supposed to be joining Motorhead drummer Mikkey Dee on the road with Thin Lizzy, but he has been forced to rethink his schedule.
"Unfortunately, due to circumstances that will be announced very soon, I cannot play the six shows with Thin Lizzy in 2016 and 2017," he says. "As a lifelong fan of the band, I truly wish I could have been a part of this, but the reason will be revealed as soon as possible."