Tyler tells Rolling Stone: "I'm sure they're not happy. But Joe Perry has done five solo albums. I just thought, 'Hey, it's my turn in the barrel.' This is a side-project that's now turned into a love of life.

"I think we've got something here that the radio would love to play. That's why I'm in it - I love to take the power of 'wow' to the 100th degree." But the singer reports relations within the volatile Boston outfit are better than ever. "We try and keep the past out of it," he says. "It's a band and it's a family.