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This is cringeworthy.

At Saturday's FA Cup Final, singer Karen Harding awkwardly missed her cue during the the British national anthem before the game.

Harding, who appeared to be having trouble with her earpiece, stood silently while thousands of fans at Wembley Stadium sang the words to "God Save the Queen" around her.

She remained that way for most of the anthem, eventually joining in near the end and showing off her lovely voice.

That didn't stop social media users from calling out her mistake...

Harding, 24, appeared on "The X Factor" in 2013. Her debut single, "Say Something," peaked at number seven on the U.K. singles charts.

Watch the awkward anthem moment above.

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