Lady Gaga pitted the past against the present in the spectacular opening of her 'Mayhem Ball' tour in Las Vegas.

Most of the first act remained consistent with the earlier Mayhem shows, with Gaga taking the stage atop a three-story dress, though it opted for a more operatic version of Born T

The only other time Gaga had performed “ Summerboy ” before Wednesday night’s Mayhem Ball show was during a performance at Lollapalooza in 2007, where she played the song in panties and black stockings. It was well before her first single, “Just Dance,” and her album The Fame, which came in 2008.