The classic Pink Floyd line-up of Roger Waters, David Gilmour, Nick Mason and Rick Wright are to reunite for the Live 8 concert in London's Hyde Park on 2 July.

Billboard reports that the show will be the first time the quartet have performed together in more than 20 years; Pink Floyd's last concerts were in 1994.

Writing on Pink Floyd's official website about the band's decision to reunite for the concert to raise awareness of African debt and hunger, Gilmour said: "Like most people I want to do everything I can to persuade the G8 leaders to make huge commitments to the relief of poverty and increased aid to the Third World."

He continued: "Any squabbles Roger and the band have had in the past are so petty in this context, and if re-forming for this concert will help focus attention, then it's got to be worthwhile."