Katy Perry lactates beer on stage during Las Vegas residency

Katy Perry is the breast at what she does.

The 37-year-old singer began her “Play” residency at the Resorts World Las Vegas on Wednesday where she brought the house down.

The mother of one made quite the spectacle when she lactated beer out of her dress made of cans, during one of her sets. The look was reminiscent of her 2010 “California Gurls” music video.

She then used a large toilet and masks to joke about the COVID-19 pandemic.

The pop star sang some of her most famous hits for the sold-out crowd, including “Waking up in Vegas,” “Dark Horse,” “California Gurls,” “Roar,” “Firework” and more.

“As with everything I do, PLAY is massively colorful for the kids, with a deep wink for the adults,” Perry previously said in a statement. “The show is a funny, playful trip, and was designed specifically for this theatre in Vegas.”

She continued, “Honestly, I couldn’t ever travel this show from arena to arena. These sets are larger than life — literally — and the perfect excuse to wake up in Vegas.”

Perry’s residency will be playing through March 2022. Fans can get their tickets here.

Perry converses with a plastic mask while drinking beer during the show.
John Shearer/Getty Images

Perry changed into eight different colorful outfits for her show, including a white mini dress, a sequined orange maxi dress, a pink Cleopatra-inspired gown and a 1960s-esque bubble dress.

The “I Kissed a Girl” songstress will reportedly be taking home a $168 million for her residency.

Earlier this week, she gave “Good Morning America” an inside look into her wild stage show and dished what it was like to perform. “A lot of my shows have been, you know, figuratively larger than life,” she revealed. “But I play a doll in this show, so everything is like, three times the size of me.”

“It’s ‘Honey; I Shrunk the Kids’ meets ‘Pee-wee’s Playhouse,’” Perry joked. “We know what our audience is — people are here to have fun, people are here to let loose.”

katy perry
Perry performs in a gigantic orange toilet for one of her sets.
Kevin Mazur/Getty Images

During a backstage tour, she showed “GMA” her large props that her show will be using. Some items included a giant bathtub, snails and a plunger and more.

She also looked back on how her life has changed since 2020, when she last went on tour. “Between then and now I was able to have a baby, which changed my life and brought me balance and perspective and priority and so much joy — everything I was looking for, I really found when I met her,” Perry said of her daughter Daisy, who she welcomed with partner Orlando Bloom in August 2020.

She continued, “Music will continue and people use music to be happy, to get their grief out, to dance, to put their makeup on, it’s — you know, we all need a soundtrack to our lives and I hope I can be part of that,” she said.