The chart-topping electro-pop singer's first U.S. tour rolled into Seattle Monday night. Sporting an angular black tutu, black heels, and, of course, her sleek shades, GaGa played tunes off her 2008 debut, The Fame, for a sold-out crowd at the 1,100-capacity Showbox Theatre. Read SPIN.com's live review here.

The chart-topping electro-pop singer's first U.S. tour rolled into Seattle Monday night. Sporting an angular black tutu, black heels, and, of course, her sleek shades, GaGa played tunes off her 2008 debut, The Fame, for a sold-out crowd at the 1,100-capacity Showbox Theatre. Read SPIN.com's live review here.

With her backup dancers behind her, the scantily-clad singer taunted the audience.

The New York native circled the stage with her scepter outstretched!

GaGa reached for the screaming crowd as she sang "Poker Face."

GaGa showed some skin and strutted her stuff onstage in Seattle.

With her forward-looking clothes and tunes, it's like GaGa just flew in from the year 2032.

The 22-year-old pop tart's moves recalled early Madonna.

Between verses, GaGa danced behind the DJ booth.