British guitar great Eric Clapton sold 100 of his guitars at auction in New York on Thursday for a little more than $5 million, according to a statement from Christie's. Clapton held the auction through Christie's to raise money for his financially strapped Crossroads Center, a drug- and alcohol-rehabilitation center on the island nation of Antigua. One of the guitars, a 1956 Fender Stratocaster, was used to write the 1971 song "Layla." It sold for $497,500, the most ever paid at auction for a guitar, according to Reuters. The previous record was set in 1990, when a guitar played at Woodstock by Jimi Hendrix fetched $320,000. Clapton plays a benefit concert for the rehabilitation center June 30 with Bob Dylan, Sheryl Crow, D'Angelo and Mary J. Blige.