For Lady Gaga, being "Born This Way" means the show goes on even when you're throwing up.
Last week, Gaga vomited on stage in Barcelona, bending over a barrier several times while performing "Edge of Glory." She gamely righted herself and continued her routine like a pro, tweeting later, "SPAIN, you took the p*** outta me. Thats some hard bodied pop stuff."
This isn't the first time Gaga has gotten sick mid-performance. This summer, she had to duck off stage in Romania. When she returned, she told the crowd, "I went backstage and vomited, and I did not want you to see this … It happens to me sometimes."
It happens to a lot of musicians. Click through for eight more memorable on-stage mishaps.
Gaga isn't the only pop star to get sick on stage. Justin Bieber fans gave fans a little more than what they bargained for in September when he vomited twice on stage during a concert in Glendale, Ariz. Video of the incident made its way around Twitter and YouTube following the concert, the first stop on his highly anticipated "Believe" tour.
While singing "Out of Town Girl," Bieber turned his back to the crowd and hunched over before quickly exiting. Luckily for the more than 18,000 fans in attendance, the 18-year-old pop sensation returned to the stage and the show went on without a hitch. He even did an encore.
"It's hard for me, you know, not feeling great and throwing up in front of a bunch of people," the Biebs told the crowd, according to USA Today. "Will you love me even though I'm throwing up on stage? OK, I wanted to give you my best show ever, so do you mind if I finish it?"
After the show, Bieber tweeted "Great show. Getting better for tomorrow's show!!!! Love u." He showed a sense of humor about the whole thing too, tweeting, "Milk was a bad choice!" (a nod to the Will Ferrell comedy "Anchorman").
Country singer Scotty McCreery learned all too well that the show must go on after falling from a stage during an August concert in New York.
The "American Idol" winner was opening for Brad Paisley when he tumbled into the crowd during his rendition of Travis Tritt's "T-R-O-U-B-L-E." Fortunately the only thing bruised was McCreery's ego. The 18-year-old singer did not miss a beat, hopping back up on stage to continue the show.
He even posted video of his on-stage mishap on Twitter and joked that Paisley was to blame for the fall, tweeting, "He narrowed up the stage on me for my last song."
Scotty later tweeted, "@BradPaisley didn't really prank me tonight y'all! Hahah. I just drifted on off the stage. Guess I wouldn't make a good Olympic balance beamer.…"
For the tour's next gig, Paisley, a known prankster, seized on McCreery's embarrassing moment, marking the stage with orange traffic cones and yellow tape to prevent a repeat accident.
Marie Osmond suffered an accident of a different kind. During a March 2012 performance on a Bahamas cruise ship, she laughed so hard after an audience member's question that she wet herself -- and the stage.
"I just peed my pants! Oh ship!" she exclaimed. She tried to use her dress to mop up the spot where she had her accident until someone brought her paper towels. Doubled over with laughter, her brother Donny Osmond told the audience, "We promised you an experience. You got it!"
At the 2010 Grammy Awards, singer Pink showed Cirque-du-Soleil-type skills when she performed a trapeze act while singing "Glitter in the Air." Trying a similar move in July that year during a concert in Nuremberg, Germany, Pink fell out of her harness and hit a metal barricade.
She was immediately rushed to the hospital, where she later tweeted, "I am so so so sorry to end the show that way. I am embarrassed and very sorry. Getting xrays. I hope it at least looked cool!!!"
Later she explained on Twitter that she "didn't get clipped in2 harness correctly, drug me off stage, fell in2 barricade " The singer suffered no broken bones, but some serious soreness.
"Love in an Elevator" just does something weird to Steve Tyler. In 2009, Tyler, the Aerosmith frontman, fell off stage while performing the song in South Dakota and had to be airlifted to a local hospital with minor head, neck and shoulder injuries.
The following year, it happened again in Toronto. Fortunately for Tyler, he emerged unscathed the second time around and was helped back on stage by fans and Aerosmith guitarist Joe Perry. Living it up when he's going down, indeed.
Jimmy Buffett's 2011 fall off a concert stage in Sydney, Australia, was made all the more ominous by the line he sang before taking a tumble: "It's been a lovely cruise, I'm sorry it's ended."
Luckily, that wasn't last call for the "Margaritaville" singer. Buffett spent a night in the hospital after being knocked unconscious and was released the following day in good spirits, according to hospital staff.
Bret Michaels took a blow to the head while performing at the 2009 Tony Awards. As the Poison frontman walked off stage, he was hit by a piece of scenery that knocked him to the ground.
Photos of his fractured nose and busted lip went viral online, and Michaels later sued the Tonys, claiming that the accident forced him to cancel scheduled Poison concerts and contributed to a life-threatening brain hemorrhage he suffered 10 months later.
In May, Michaels settled with the Tonys and other parties named in the lawsuit for an undisclosed sum of money.