<Li> Fan sites, press articles and record labels have been known to inflate record sales claims . </Li> <Li> Inflated claims for artists who performed in different acts during their careers . Sometimes all of the sales data is attributed to an individual artist . For the purposes of this list, an effort is made to separate the individual acts (e.g., the sales figures for The Beatles and Paul McCartney & Wings are mutually exclusive). </Li> <Table> <Tr> <Th> Artist </Th> <Th> Biggest selling album </Th> <Th> Period </Th> <Th> Genre </Th> <Th> Claimed Sales </Th> </Tr> <Tr> <Td> The Beatles </Td> <Td> Sgt . Pepper's Lonely Hearts Club Band </Td> <Td> 1960--1970 </Td> <Td> Pop / Rock </Td> <Td> 600 million </Td> </Tr> </Table> <Tr> <Th> Artist </Th> <Th> Biggest selling album </Th> <Th> Period </Th> <Th> Genre </Th> <Th> Claimed Sales </Th> </Tr>

Who is the biggest selling british artist of all time