Madonna made a surprise guest appearance at the Coachella music festival during Sabrina Carpenter's headline set on Friday night.The pop icon joined Carpenter on stage for a duet, performing hits including Vogue and Like A Prayer, as well as a song from her newly announced album, Confessions II.The performance came after days of speculation about Madonna's involvement at the festival held in the Colorado desert in California.On Wednesday, Madonna officially confirmed the release of Confessions II, a sequel to her 2005 album Confessions On A Dance Floor.During the set, Madonna and Carpenter performed the 1990 house hit Vogue, followed by... [Continue Reading]