Since 1963 Eric Clapton has contributed to two hundred albums by other artists: from very famous to the obscure and the unexpected: Bob Dylan, Aretha Franklin, The Rolling Stones, Sting, Phil Collins, Rod Stewart, all four of the Beatles, Martha Vel?z, Jonathan Kelly, Corey Hart, Stephen Bishop, Hawkwind, Ray Charles, Kate Bush, The Tony Rich Project, Toots and the Maytals and Mary J. Blige. If you've never heard (for instance) 'Beat of the Night'...