Nazareth

Roger Earl and Bryan Bassett tell UCR about the long history between the two groups.

Co-founding bassist Pete Agnew confirmed the news.

"I have lost my best friend and the world has lost one of the greatest singers who ever lived," bassist Pete Agnew wrote.

Co-founding guitarist also produced early Guns N' Roses demos.

This was the last stop before the band delivered the bestselling LP of their career with 1975’s 'Hair of the Dog.'

Their sixth, and best known, LP was originally called something else.

Osbourne replaced founder Dan McCafferty in 2014.

Nazareth's 23rd album, 'Rock 'N' Roll Telephone,' will be released June 3.

Health woes have forced Nazareth singer Dan McCafferty to retire after more than four decades of fronting the band, but his heart remains in the music -- and with the fans, whom he thanked in a heartfelt letter recently posted at Nazareth's website.

Nazareth may move forward in the wake of Dan McCafferty's retirement, but at least one former member has declined the offer to step into the longtime singer's shoes.