Led Zeppelin trio back in studio

Led Zeppelin musicians Jimmy Page, John Paul Jones and Jason Bonham have been working on new material.

Drummer Bonham told a radio station in Detroit that the songs could be destined for a new Led Zeppelin album.

Writing new material has been "on the cards" since the band's one-off reunion show in London last December.

But lead singer Robert Plant has not been involved in any of the sessions, he added.

"At the moment, all I know is I have the great pleasure to go and jam with the two guys and start work on some material," he said.

"When I get there [in the studio] I never ask any questions. If I get a phone call to go and play, I enjoy every moment of it.

"Whatever it ends up as, to ever get a chance to jam with two people like that, it is a phenomenal thing for me. It's my life. It's what I've dreamed about doing."

He added: "Lots of politics [would need to] get ironed out [before an album could be made]."

Led Zeppelin played their first concert in 19 years in front of nearly 20,000 fans at London's 02 arena in December.

Their two-hour set opened with Good Times Bad Times - the first track of their debut album.

Original band members Page, Plant and Jones were joined on stage by Jason Bonham - the son of their late drummer John.

Although Page, Jones, and Bonham have expressed the strong desire to tour as Led Zeppelin, Plant has consistently opposed a full tour and has responded negatively to questions about another reunion. In a January, 2008 interview, he stated that he does no want to "go around and around like a bunch of bored old men following the Rolling Stones around."