Lady GaGa Still Needs Practice at the Whole Using-a-Stool Thing (PHOTOS)

Have a seat, Lady GaGa. No, really.

The Pantless One rocked the first of three sold-out shows at the Queen Elizabeth Theatre on Wednesday night, where she’s warming up for next year’s Fame Monster tour.

While the “Poker Face” singer clearly has the wardrobe aspect of her set down—engaging in no less than nine costume changes during the two-hour performance—she apparently still needs a little coaching on how to properly use a piano stool. Those heels can’t be good for the upholstery. Oh well; first thing’s first (pants maybe).

Click through the photo gallery to see more of GaGa wowing the crowd in Vancouver.