Lady Gaga kicks off her massive Monster Ball Arena Tour.

Lady Gaga embarked on her massive Monster Ball Arena Tour, in Europe, and Australia. Calling it an Electronic-Pop-Opera, the show features not just her popular music, but, also, original scores of music, scripted lines, and, music yet to be heard. While it's not quite clear if she's going to tour the United States again, with the show, she is Heavily Rumored to be Headlining at Lollapalooza, in Chicago, August 6-8th, at beautiful Grant Park. Here is a preview of her Monster Ball show.

Enjoy.