Connor Ball took a tumble on Dancing On Ice and ended up bleeding.
The Vamps bassist and singer fell during a jump as he and his pro partner Alexandra Schauman performed during Sunday night's episode of the ITV show.
"The blade went into my leg," Ball explained.
Both presenters expressed their concern and Willoughby asked: "Do you want to go and see a medic?"
She later told the audience that he was being seen backstage.
The injury left Ball's fans worried, with many posting about it on social media.
"Poor Connor," said one.
"I think he is a great skater, when he goes over I feel sorry him," said another.
"My heart breaks for @TheVampsCon," said another fan, who thought the fall looked "nasty".
They added: "However this is what I love about Connor. He's a trooper. He falls over gets back up and carries on, he doesn't give up which I love. What a performer."
It wasn't the star's first injury on the ice.
Earlier this month he cut his chin in rehearsals just minutes before he was due to open the live show and underwent emergency stitches.
But after spinning Schauman over his head on the ice the stitches ruptured, leaving him bleeding.
Watch: Sean Rice on Dancing On Ice