Opera legend tenor PLACIDO DOMINGO rushed to Madrid hospital after suffering a pulmonary embolism – a blood clot in his lung.

Domingo, 72, one of the  legendary Three Tenors with José Carreras and the late Italian singer Luciano Pavarotti,  was hospitalized yesterday, his rep confirmed.

Domingo, who also serves as the general director of the Los Angeles Opera, has been forced to cancel five performances in late July in the opera Il Postino at the Madrid Royal Theatre in Spain.

Domingo’s hospitalization will also prevent him from conducting an orchestral performance in  Madrid's Plaza Major planned for July 21.

Thankfully, his LA flack Nancy Seltzer told media, "He's doing very well and responding very well to treatment".

It's not the first time the singing legend faced a serious medical condition. After undergoing colon cancer surgery in 2010 Domingo returned to the stage just 45 days later.