Looking good!

Popchips revealed Wednesday that Katy Perry is the new face of the healthy snack food brand. Us Weekly has a sneak peek of the brand's first national ad-campaign, launching on Sept. 1, featuring the sexy 27-year-old star.

The "Part of Me" singer shows off her hot, toned bod in a purple polka-dot sports bra while lifting two bags of Popchips. "Love. Without the handles," the ad reads. "I curl Popchips straight to my lips. Good thing they don't go straight to my hips."

"Nothing fake about 'em," another ad reads, with Perry, wearing a purple wig, holding up two Popchips bags over her chest. "I'm not into phonies. Good thing there's nothing fake or phony in Popchips. They only taste like they're bad for you."

As a part of her national campaign for Popchips, the company has launched a sweepstakes where lucky fans have the chance to win a trip to Los Angeles to meet the chart-topping star and get pampered like a celeb at all of her favorite hotspots.

For more information on the contest, visit http://popchips.com/katyperry/.