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As everyone knows, Madonna and Lady Gaga are no strangers when it comes to taking digs at each other.
And the Material Girl`s concert stop in St. Paul, Minn., on Sunday was certainly no exception as Madge told the crowd how Mother Monster refused her offer to perform together.
"I have the best fans in the whole world. So take that, Lady Gaga!" Madonna exclaimed. "You know, I invited her onstage to sing with me, but she turned me down. It`s OK. I`ve been rejected before. It`s good to build character."
What do you think? Should they have performed together? Do you think the audience felt let down? Comment below!