. . . "And yet the connection with pop art has credibility, not only because of her ironic epigrams about ???lying profusely??? in interviews, or her preoccupation with fame (her bestselling debut album of 2008 was called The Fame), but because she has picked up on abiding themes in the work of Warhol, the artist who once said: ???Making money is art, and working is art, and good business is the best art" . .