According to the BBC News website, the Russian parliament voted down a proposal to put Madonna on the international space station in 2008. Apparently, many of those voting against didn't realize that the plan did not involve bringing her back.
Not that I've got anything against Madonna, mind you. I've always admired her ability to sing "Like a Virgin" entirely from memory.
And she has done pretty well for yourself when you consider that she is, at heart, a male drag queen trapped in the body of a woman.