John Lennon’s iconic blue sunglasses are being auctioned off next month and are expected to reach $6,000. It is part of charity event Icons of Music organised by U2 guitarist The Edge to replace instruments lost in the wake of hurricanes Katrina and Rita. Fans can bid online on April 21st or in person at New York’s Hard Rock Café for John’s sunglasses or a whole host of other celeb memorabilia. Stars such as Madonna, Bob Dylan, Kiss, Lou Reed and Coldplay have been lining up to offer their mementoes for the auction. The items will be exhibited in Los Angeles, Dublin and London before going to New York for the sale.