Madonna loves her a good feud -- so it's no surprise that the Material Girl is keeping one with Lady Gaga alive. Over the weekend, Madonna told the crowd at her concert that Gaga refused her offer to perform together.
Madonna said, "I have the best fans in the whole world. So take that, Lady Gaga! 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."
In September, Madonna announced during her NJ show that the two would perform on stage together. She said, "You wanna know something? I love her. I love her. I do love her. Imitation is the highest form of flattery. But one day, very soon, we're going to be on stage together. Just you wait."