Lionel Richie undergoes heart procedure: What we know

Days ago, Lionel Richie was seen showing signs of distress on stage, which led to his hospitalization.

Now, it has emerged that he underwent a medical procedure to treat atrial fibrillation.

AFib, the condition, is an abnormal heart rhythm, but the singer's rep says the procedure was a non-emergency one and it went successfully.

“Lionel underwent a common procedure for atrial fibrillation (AFib),” the rep said in a statement.

“The doctor said everything went perfectly… Lionel is doing great but will take some time off and will be back on stage soon.”

Further on AFib, the Mayo Clinic describes its procedure as “treatment for an irregular and often very fast heartbeat."

"The treatment uses heat energy, cold energy or high-energy electric pulses to create tiny scars in an area of the heart."

"The signals that tell the heart to beat can’t pass through scar tissue. So the treatment helps block faulty signals that cause AFib," it read.

In turn, Richie's concerts, especially the set in San Francisco, Chicago, and Columbus, Ohio, have been cancelled.

However, his three-day engagement at Las Vegas is still on schedule.