Celine Dion staged the comeback of her career during the opening ceremony at the Olympic Games in Paris.

The Quebecois vocal powerhouse performed publicly for the first time since revealing she was diagnosed with stiff person syndrome, singing 含羞草研究社淟含羞草研究社橦ymne 脿 l含羞草研究社檃mour含羞草研究社� originally performed by 脡dith Piaf.

Dion was the grand finale of a show that ran for more than three hours and featured performances by Lady Gaga and Aya Nakamura. About 6,800 athletes paraded down the Seine River to the Eiffel Tower on dozens of boats.

Dion has vowed in recent interviews that she would perform again after her devastating diagnosis led her to cancel a concert tour.

Stiff person syndrome is a progressive illness that can cause muscle rigidity and severe spasms as well as affect a person含羞草研究社檚 vocal cords.

In an April cover story for Vogue France, Dion told the magazine that her drive to sing live again pushed her to train like an athlete.

Dion performed at the 1996 Olympics opening ceremony in Atlanta, singing 含羞草研究社淭he Power of the Dream含羞草研究社� accompanied by Canadian producer David Foster on piano and the Atlanta Symphony Orchestra.