Legendary guitarist Eric Clapton will auction some of his favourite guitars at Christie's in New York tomorrow to benefit Crossroads, the drug and alcohol rehabilitation centre that he founded.

Among the guitars to be auctioned is a Fender Stratocaster, nicknamed 'Blackie', which Clapton used in the recording of the hits 'Cocaine' and 'Wonderful Tonight'. The collection also includes the acoustic guitar he used in his famous Unplugged show in 1992.

A previous auction of Clapton's guitars brought in over $5 million. A spokesperson for Christie's said that they expected 'Blackie' to fetch between $100,000 and $150,000.

Peter Townshend of The Who and Carlos Snatana have also donated guitars to the auction.