With sales of more than 150 million records, the Irish Rock band, “U2,” has been awarded 22 Grammys. Lead singer Bono has also spent much of his fortune and time campaigning for human rights and aids research. Best known for their album, “The Joshua Tree” from 1987, their most collectible albums are the little known “2 Sides Live,” released to college radio by Warner Brothers in 1981, now worth up to $350.00 and “War is Declared,” a two-record set for NBC radio in 1983. That can sell for $800.00.