Katy Perry made a showstopping appearance at iHeartRadio z100's Jingle Ball in New York City on Friday.
The 40-year-old displayed her slimmed-down physique in a metallic silver dress that hugged her curves and featured ruched detailing that accentuated her tiny waist.
The skintight frock also boasted a high neck, long sleeves, and a floor-sweeping length. Katy let her dress take center stage and kept her accessories to a minimum with earrings and chunky rings.
Following her red carpet appearance, Katy took to the stage to perform a selection of her greatest hits, wearing flesh-colored hot pants, a boned corset with silver metallic cups on the bust, and matching thigh-high boots.
Katy has undergone a body transformation over the last several months, reportedly losing a whopping 20lbs.
The singer is said to have cut out sugar and processed foods and has started working out alongside her fiancé, Orlando Bloom.
© Getty ImagesKaty recently admitted that she doesn't like working out but attributed her new sculpted physique to her love of swimming.
"Well, I hate working out. I actually do," she said during filming for her new ITV concert special, Night of a Lifetime at the Central Hall Westminster on Wednesday night.
© Getty Images"You know what I love to do, I love to dance, swim, and do things that don't feel like working out," she added.
Discussing her toned arms, which recently went viral, she explained: "I hear that my biceps were going around the internet. So that's a little bit from my swimming I will say I am quite a good swimmer.
"But seriously it's been a while since I have been on tour and by the time I go on tour it will be eight years.
© Getty Images"So, I actually probably should go to the gym. The tour is going to be a dance party, and everyone is invited."
In October, Katy shared one of her diet secrets in an Instagram post detailing a day in her life in the run-up to her performance at the AFL Grand Final in Australia.
© Getty ImagesThe "Roar" singer revealed that she consumes several eggs a day, opting for the protein-rich snack instead of unhealthy options.
"I eat a lot of hard-boiled eggs because they are a great source of protein," she said while standing in front of a table full of breakfast items.
Katy has even devised her own way to crack an egg, explaining: "I don't crack them on [the plate], I go like this [cracks on forehead]."
She jokingly added: "Ouch, that one really hurt, and it had some juice in it."
During the video, Katy could also be seen cracking a hard-boiled egg on her forehead as she sat in a chair getting her hair and makeup done.
Katy tries to follow Orlando's lead and eat "clean" foods like chicken or fish with plenty of fruit and vegetables, nuts, and seeds.
© Getty Images"[Orlando] definitely is very goal-minded about everything with the way he eats and works out," Katy told Women's Health in January.
"I'm probably one-fourth or one-fifth of what he is, so he is super dedicated and I'm more of a maintaining mother."
Elaborating on her diet, Katy explained that she always begins her day with a glass of water and apple cider vinegar followed by celery juice.
© InstagramShe will then have a banana or hard-boiled eggs for breakfast followed by a protein with salad or soup for lunch.
While dinner consists of a simple meal like grilled chicken with quinoa and asparagus, she will treat herself to pasta once or twice a week.
