How cheeky! Madonna slaps Amy Schumer's bottom as comedian joins her on stage during Rebel Heart Tour in NYC
Neither Amy Schumer nor Madonna are known for holding back when it comes to their performances.
So it was no surprise that when the two came together on Wednesday, at one of the Madison Square Garden stops of Madonna's Rebel Heart Tour, things got a little crazy.
After opening for Madonna, 57, the 34-year-old comedian joined her onstage for a song, during which the hitmaker proceeded to lift up her dress and slap her bottom.
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Into it: Comedian and opening act Amy Schumer joined pop star Madonna onstage during her concert at Madison Square Garden on Wednesday
Putting on a show! Madonna playfully slapped opening act Amy Schumer's bottom during a performance at one of her Madison Square Garden shows on Wednesday
Amy strolled out onstage to join Madonna, sporting a spaghetti strap black dress and strappy sandals.
However, she was quickly turned around and made to lean over as the Material Girl hitmaker took a peek at the comedian's lacy black underwear, and gave her a few cheeky slaps across her derriere.
Four backup dancers in tuxedos stood by and cheered as Madonna and Amy joked around together.
Big fan: The comedian appeared to love every minute
Putting in the leg work! Madonna showed off toned pins in a pair of racy, thigh-high black leather boots during one performance
Vogue: The Comedy Central star seemed thrilled to join the singer onstage
Not shy: Schumer showed off her dance moves after joining Madonna and her dancers onstage
The comedian appeared to be loving every minute, dancing wildly on stage as Madonna sang to her.
The Trainwreck star shimmied and waved her arms in the air, pulling a silly sultry face as she pulled off her impressive moves.
And even the back-up dancers seemed impressed, laughing as Amy got into the groove.
Impressive: The comedian impressed Madonna's backup dancers with her energetic style
True pro: Madonna stayed focused on the music as Amy danced
Material girl: The New York crowd loved the surprise show
Then, as Amy went to stand up, Madonna could be heard saying: 'I'm not done!' before pretending to kick the Comedy Central star's bottom, and then twerking behind her.
After that, however, she scooped Amy back up and the two could be seen skipping along down the stage together.
Earlier that day Amy had looked forward to opening for Madonna by sharing a hilarious throwback video on her social media accounts.
Confused: Amy appeared a bit surprised as Madonna and her dancers turned the comedian around and lifted up her dress before patting her on the derriere
Twist: However, then Madonna turned her around - revealing Amy's lacy, black underwear - as she slapped her bottom while her dancers showed shocked expressions and cheered
'I'm not done!' That wasn't all though, as before the crazy bit was over Madonna playfully pretended to kick Amy's butt
Dancing queen: Just before the two skipped away together, Madonna then twerked behind the comedian
In the adorable clip, the young star could be seen sporting curly bangs, with the rest of her hair pulled back into a ponytail, as she belted out the lyrics to Madonna's 1989 hit Like A Prayer.
'I made it through the wilderness. Meet you at @TheGarden tonight @Madonna,' Amy wrote, alongside the clip.
After her performance Schumer announced to the excited crowd - who gave her a standing ovation - that she would be returning after the Rebel Heart Tour on June 23 to play Madison Square Garden herself.
Thrilled: The comedian looked like she couldn't believe her luck
Made her night: Opening act Amy looked thrilled to be on stage beside her childhood idol
Opening act: Madonna helped the Inside Amy Schumer star out with some props during their performance
Special guest: Amy had joined the Queen of Pop as her opening act for the night, though she later returned to the stage to dance with the star
Big news: After her opening act, Amy announced - to a standing ovation - that she would be returning to Madison Square Garden after her Rebel Heart appearances for her own show on June 23
It's not the first time Amy's dance moves have wowed concert-goers.
She and new BFF Jennifer Lawrence climbed on top of Billy Joel's piano during a performance of Uptown Girl in Chicago late last month.
Their appearance was a nod to Schumer's hit comedy Trainwreck, which includes a dance sequence to Joel's 1983 hit.
Uptown girls: Amy Schumer shared this photo of her and Jennifer Lawrence dancing on top of Billy Joel's piano during a Chicago show last month
Meanwhile, Amy wasn't the only celebrity supporting the Queen of Pop at her Madison Square Garden show on Wednesday.
Jennifer Lopez and Casper Smart were seen cuddling as they caught the show, which was also attended by Ariana Grande, her mother, and her brother Frankie.
The Shades of Blue actress looked laid-back in a blue and red plaid jacket coupled with a pair of fitted, light wash jeans.
Casual couple: Jennifer Lopez and Casper Smart looked laid-back as they were spotted snuggling together while catching Madonna's show on Wednesday
Family affair: One Last Time hitmaker Ariana Grande also showed her support for Madonna, attending the concert with her mother Joan and brother Frankie Grande
The mother-of-two showed off wild curls, and accessorized with gold, hoop earrings, and bright red lipstick.
Casper matched her casual style, donning a denim jacket over a fitted, grey T-shirt, and jeans, accessorizing with brown sunglasses.
The duo sported wide smiles as they were spotted cozying up to each other during Madonna's show.
Kisses! The former Nickelodeon star pulled a pout as she posed beside her brother, who donned a Madonna T-shirt
Blonde beauty: The Material Girl hitmaker also showed off red lips, and wore her long, blonde tresses in loose waves
Ariana showed off her trim figure in a strapless, form-fitting black dress, and sported her long tresses in her signature pony.
She wore a dramatic cat eye, but balanced out the look with a softer lipstick, and otherwise kept her accessories simple.
The former Nickelodeon star pulled a pout as she posed alongside her brother Frankie and her mother Joan Grande, who dressed a bit more casually in a Madonna T-shirt, and a long-sleeved black sweater, respectively.
Playing to the crowd: The blonde beauty's fans seemed to be going wild as she knelt stage-side to perform during one number
Sharing the love: Madonna catered to her fans during the Madison Square Garden show
Change of pace: She later donned a sleek, black jacket and skintight trousers as she danced with a red fan
Madonna, meanwhile, looked more youthful than her 57 years as she impressed crowds in daring, fashion-forward ensembles.
She showed off toned pins in a pair of thigh-high black leather boots for one song, which she coupled with fishnet tights and a corset top with long, flowing black sleeves.
She wore her long, blonde tresses in loose waves and showed off bright, red lips as she performed for the crowd.
The mother-of-four later covered up in a sleek, black jacket and skintight black trousers as she danced about onstage with a red fan, surrounded by elaborately dressed backup dancers.
In good company: The star was joined onstage by backup dancers in elaborately decorated, red costumes as she performed Rebel Heart hits
Helping hand: The star received a bit of a lift from backup dancers as she commanded the stage on Wednesday
Full of praise: Following the show Madonna took to Instagram to share her love for the New York City crowd
She later took to Instagram to share a few photos from the night, along with her love for the lively audience.
'NY I Salute You!!! So much Fun! [heart emoji] #rebelhearttour,' she wrote, alongside a photo of her sporting a large, red hat, while draped in the American flag.
Madonna continued the praise with a close-up shot of her in a glittering, black ensemble, dripping in crystals, as she played guitar.
Patriotic: The pop icon shared this snap of her, draped in the American flag, as she commented: 'NY I Salute You!!! So much Fun! [heart emoji] #rebelhearttour'
Grateful: Madonna also later gushed about all of the fun she had on Wednesday evening, writing ''M S G was on Point ‼'
#I [heart emoji] NY La Vie En Rose #rebelhearttour,' the blonde beauty emphatically captioned the picture.
Lastly, she shared an overhead shot of the crowd, lovingly posting: 'M S G was on Point ‼️ So much Fun! [heart emoji] #rebelhearttour.'
Madonna will appear at Madison Square Garden again for her Rebel Heart Tour on September 17, before moving onto the Barclays Center in Brooklyn on the 19.
Just beginning: Madonna will appear at Madison Square Garden again for her Rebel Heart Tour on September 17, before moving onto the Barclays Center in Brooklyn on the 19
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