Wow!  There cannot possibly be many better ways to spend an hour than this.  Judy and Liza give, both independently and collaboratively, an incredible performance.  While this is Liza's first public stage performance with her remarkable mother, Liza takes only seconds, despite some apparent and more than understandable nervousness, to prove that she is not just Judy Garland's daughter but is in fact a fantastic singer in her own right.  While I have listened to a little bit of Liza in the past, I only did so because she was the daughter of the greatest singer to ever live.  I can now say, however, that I am a Liza fan.  The Judy Garland in this video is the Judy Garland that so many of us continue to adore, with no trace of the sadness that perpetually haunted her throughout her adult life.  She is seemingly very happy to be on stage, which is probably the only place where she was truly ever happy, and she makes everyone in her audience share in that happiness.  Obviously, she is delighted and proud to have her daughter on stage performing with her--this is clearly evident when Liza sings "Who's Sorry Now?" because the camera shows Judy sitting on the stage in front of Liza and clearly enjoying her singing.  There is a lot of interaction with the audience, as well, both between songs and sometimes even during songs.  I am one of those people who always seems to be frowning, but I smiled throughout this entire performance.  That is the magic of Judy Garland.  On pretty rare occasions, a certain song by a certain singer will give you goosebumps, and those goosebumps usually stop appearing once you have heard that special song a few times.  Judy Garland, however, gives me goosebumps on almost every song she sings; I've been a fan since 1989, and those goosebumps haven't stopped yet.