Judd peppered her performance with praises for alli, a weight loss drug for which she serves as spokeswoman. The singer, who has endorsed the product since January, looked noticeably thinner during the gig.

“In the past few months, I’ve learned to look at weight loss with a fresh approach that includes better nutrition, exercise, and emotional support,” Judd said, in reference to alli.

Her spectators consisted mostly of fellow alli consumers, who snapped the tickets via a sweepstakes raffle. Judd expressed her excitement in performing for an audience who embraced the healthier way of life.

Judd has appeared in the nationwide ad campaign for the over-the-counter supplement, reportedly the only one approved by the FDA. The product claims to reduce weight by as much as 50%, mainly by impeding the intake of fat and calories into the body. It comes in capsules, which are available in starter packs.

According to GlaxoSmithKline Consumer Healthcare, the makers of alli, Judd pairs the product with a low-fat diet. The company also equipped the star with exercise equipment for her use in between gigs.

Ideally, alli should be integrated in a personalized action program, which includes regular physical activity and a balanced diet. “The alli Method is about succeeding through healthy, gradual weight loss,” said Rachel Ferdinando, a senior executive at GlaxoSmithKline Consumer Healthcare.

Formerly a member of The Judds, Wynonna has posted multiple platinum records in a career spanning 25 years. The chart-topping country artist is now signed to Curb Records.

GlaxoSmithKline Consumer Healthcare ranks among the world’s premier makers of non-prescription products. It produces such products as Sensodyne, Aquafresh, Nicorette, Abreva, and Breathe Right.