Ashlee Simpson & Vincent Piazza's HBO Emmy Party PDA

Posted Monday September 19, 2011 1:29 PM GMT

She’s never one to miss out on a good time, and last night (September 18) Ashlee Simpson was spotted at the Official HBO Emmy After Party.

The “Pieces of Me” songstress was joined by her handsome boyfriend Vincent Piazza, making it their third public appearance in a week.

And of course, Ashlee was dressed to kill in a sexy red sequin dress with a plunging neckline and a pair of flirty earrings.

Meanwhile Vincent’s show “Boardwalk Empire” won the Emmy for Best Directing in a TV Drama Series, so director Martin Scorsese was quite pleased.

Photo Credit: Getty Images