A FLORIDA couple claims Olivia Newton-John (above) reneged on a $2.25 million agreement to buy their house. The Aussie songbird and her hubby, John Easterling, have been sued by owners of a 4,500-square-foot home in Tequesta after Newton-John walked away from the deal. But her lawyer says the Floridians blew it by not getting their bank to grant approval for the short sale – moving the house at a loss. “When the seller couldn’t close, my people lost interest,” said attorney Bob Hacknay.celebs-gossips1