Jennifer Lopez's $3 Million Performance.... Latina singer/actress Jennifer Lopez has been paid a staggering $3 million (£1.5 million) to perform at the birthday party of a Russian billionaire's wife.Banker Andrei Melnichenko, 35, is paying for Lopez to fly from Los Angeles to his Berkshire, England estate to sing at the 30th birthday of his spouse Aleksandra tomorrow (21Apr07).A source says, "J.Lo was booked because both Andrei and Aleksandra are fans of her. She is flying in specially from LA."When Andrei married Aleksandra two years ago (05), Christina Aguilera provided the wedding entertainment.