(CNN) Kelly Clarkson had her appendix removed just hours after hosting the Billboard Music Awards in Las Vegas on Wednesday night, the singer confirmed in a tweet.

Clarkson at the 2019 Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas.

The surgery was performed at Cedars-Sinai Medical Center in Los Angeles early Thursday morning, said Clarkson, who also tweeted that she is "feeling awesome now!" Her post was a response to Buzzfeed reporter Jarett Wieselman, who commended her for a performance under pressure that did not show "any sign of discomfort."

"Not gonna lie.... I may or may not have broken down in tears after the show from pain BUT thanks 2 all the amazing people @ Cedars-Sinai I flew home directly after the event, nailed the surgery early this morning," the singer tweeted along with a #TheShowMustGoOn.

Not gonna lie.... I may or may not have broken down in tears after the show from pain 😬 BUT thanks 2 all the amazing people @ Cedars-Sinai I flew home directly after the event, nailed the surgery early this morning, & feeling awesome now! Bye bye appendix 🤣 #TheShowMustGoOn 💁🏼‍♀️ https://t.co/eL9HoVlSiM — Kelly Clarkson (@kelly_clarkson) May 2, 2019

Appendicitis -- inflammation of the appendix, a finger-shaped pouch that sits on the lower right-hand side of the colon -- is a common surgical emergency, with over 250,000 cases each year in the United States. A blockage inside of the appendix causes appendicitis. Most people experience sudden pain that begins around the navel and then moves deeper into the abdomen and increases as the inflammation worsens.

Clarkson performs onstage during the awards ceremony.

Anyone can develop appendicitis, but most often it occurs in people between the ages of 10 and 30, according to the Mayo Clinic . Surgical removal of the appendix is the standard of care, though in some cases it can be treated non-operatively with antibiotics.

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