Kellie Harrington left the Irish public "in awe" after beautifully singing 'Grace' on last night's Late Late Show.
The Olympic boxing champ had a busy St Patrick's Day after being the grand marshal of this year's Dublin parade.
She then appeared on RTE's Late Late Show alongside Irish-American actor John C Reilly.
Read more: RTE Late Late Show viewers amazed by John C Reilly's rendition of a Dublin classic
Kellie showed the public that boxing isn't her only talent when she belted out famous Irish song 'Grace'.
Viewers were blown away by the performance, calling the Olympian "an absolute diamond".
One wrote on Twitter: "Just when you think Kellie Harrington couldn’t become any more of a legend. Is there anything that lady can’t do?"
Another said: "She is one hell of a woman for one woman. What a legend."
A third viewer wrote: "You’re a legend and a hero of this country. You deserve the best! The very best of us all!"
Speaking on the show, Kellie said she was heading back to work in St Vincent's Hospital this weekend after taking some time off.
The 32-year-old competed in Bulgaria last month and won a gold medal in the lightweight division of the International Strandja tournament.
She said: "I'm still in there - I've had a bit of time off as I was getting ready to go to Bulgaria. But I'm back in there [St Vincent's Hospital] on Saturday and Sunday."
Read more: Kellie Harrington says she had a mini-crisis before St Patrick's Day parade
Read more: Dubliners share their favourite Irish songs with one popular singer reigning supreme
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