Singer Sheryl Crow has become the latest celebrity to get caught in the real estate crash. She can’t sell her sprawling Nashville mansion, so she has gone to the extreme — putting it up for auction at a bargain basement price. Like so many stars who made it big, Crow splurged on huge house with top of the line features. But since the real estate market crash, they have become white elephants. Now Crow’s house is bargain priced. The bidding has topped out at $1.1 million with the online auction set to end Nov. 24.