Ricardo Gomes Madonna brought the party to her Celebration Tour with another surprise guest. On Thursday night, the "Hung Up" singer, 65, invited fellow pop queen Kylie Minogue to the stage during ...

"On the subject of survival, I would like to introduce a very special guest who's going to come up here and sing with me," said Madonna, per fan-captured footage. "Her name is Kylie Minogue," she ...