Paul Rodgers [ tickets ], who is gearing up for a summer reunion tour with Bad Company [ tickets ], says his long-running collaboration with Queen [ tickets ] has ended.

"Well, you know, we did a world tour, we did a second tour of Europe and the Far East and Eastern Europe and we did a studio album and I think we’re kind of leaving it there gently," Rodgers said during an interview with VH1 Classic Radio News.

The singer didn't slam the door on working with Queen again in a limited capacity.

"It's out there for us to do things in the future if there's something, a huge charity say like Nelson Mandela, I'm always open to that," he said, "but I think we are pretty much done."

Queen first toured with Rodgers at the helm in 2005 after the singer performed with the group at the band's 2004 induction into the U.K. Music Hall of Fame. That outing was the group's first since 1986, before late frontman Freddie Mercury began showing symptoms of AIDS. Mercury died of the disease in 1991.

Rodgers and Bad Company will launch a 10-city US tour next month.