Speaking of "Idol Gives Back," here's a guy who should make a big ol' heaping donation. Russian billionaire Andrei Melnichenko forked over $2 million to have J.Lo do a 40-minute set at his and his wife's joint B-day party last weekend, People says. What's more, he paid an additional 800 grand to fly the singer and husband Marc Anthony to England and get them what I'm sure was a palatial hotel suite in London. Maybe Daddy Warbucks takes the concept of "charity begins at home" a wee bit too literally.