Jennifer Hudson, who lost 80 pounds after becoming a Weight Watchers spokesperson in 2010, showed that she's kept the weight off while attending the company's 50th anniversary party in New York City on Monday Night.

The svelte Hudson, 31, shined during her special appearance at the party, while clad in a hip-hugging, gold pencil skirt which highlighted her curves and accentuated her diminished waistline.

As the company's spokesperson, Hudson presented a tribute to the founder of Weight Watchers, Jean Nidetch. Hudson's speech also discussed the importance and impact weight loss has had on her own life.

"I'm prouder of my weight loss than my Oscar!" she told Self magazine. "I hope it has inspired people."

Standing 5'9", the tall Dreamgirls star currently wears a size 4-6. But, even when she was a size 16, Hudson said she never lacked self-confidence and did not consider herself to be abnormal.

"I didn't even know I was considered plus-sized until I came to Hollywood," Hudson added. "I thought I was the perfect size!"

The singer, who first rose to fame in 2004 as a top-ten finalist on the third season of American Idol, revealed that she first confronted her weight when, after giving birth to her son, her scale still read 236 pounds.

Having delivered by cesarean section, Hudson wasn't able to exercise at first, "but like my mother always said, where there is a will, there is a way," Hudson said in an interview with Good Housekeeping. "I could at least change my eating habits. That was one thing that I could control without even having to get off the couch."

Hudson said that she gave Weight Watchers a try because, with her busy and unpredictable schedule, she needed a plan that allowed for flexibility. When she first met with her Weight Watchers counselor Hudson said she rolled her eyes at the seemingly tiny snacks and other products promoted by the company.

"I noticed that when I was home alone with [my son], I often found myself hitting the refrigerator," Hudson told Good Housekeeping. "I was often very tired from staying up at night with the baby and was just mindlessly eating."

She added that teaching herself to be aware of every single bite "was a real game changer" for her. "Because if you can't acknowledge a problem, then how are you going to fix it?"

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