Don Omar is undergoing a battle with cancer.

In a Monday Instagram post, the reggaeton icon revealed he has been diagnosed with an undisclosed form of cancer. He shared a photo of himself wearing a bracelet from Orlando Health, a healthcare organization based in Orlando, Florida.

"Today yes, but tomorrow I won't have cancer," Don Omar wrote in Spanish. "Good intentions are well received. See you soon."

USA TODAY has reached out to representatives for Don Omar for additional details.

Several of Don Omar's Latin music peers took to the comments section to share their well-wishes for the 46-year-old.

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"We’re moving forward, champion," Jerry Rivera commented in Spanish. "You know the Word, and you’ve known God for a while. You’ve always been a winner, and that’s not going to change. You are healthy in the name of the lord!"

"Lots of strength (to you)," Ozuna wrote in Spanish. "God is with you 🧸"

"Brother, we are with you," Jowell of Jowell & Randy commented in Spanish.

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Born William Omar Landrón Rivera in Puerto Rico, Don Omar is considered one of the forefathers of modern-day reggaeton.

The Latin Grammy-winning rapper and singer made his debut with 2003’s "The Last Don," which was certified double-platinum in the U.S. and earned him a Top 40 hit on Billboard’s Latin Pop Airplay chart with "Dile."

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Don’s follow-up, 2006’s "King of Kings," was certified quadruple-platinum and gave the reggaetonero a No. 1 hit with "Angelito."

In 2015, Don paid tribute to his reggaeton roots and topped the charts with "The Last Don II," a sequel to his debut album that featured collaborations with Daddy Yankee, Tego Calderón and Wisin & Yandel.

Don Omar is performing on his Back to Reggaeton Tour, which kicked off in March. The tour's second leg is set to begin Aug. 7 in Oakland, California, according to Don's official website.