Lady Gaga let emotion take over her poker face today as she broke down in tears in an appearance on So You Think You Can Dance on Wednesday.

The pop diva was helping out on the judging panel of the show, hosted by Cat Deeley.

She burst into tears during a dance routine from contestant Marko, played to Jeff Buckley’s I know It’s Over.

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Gaga said, mid waterworks: "There were so, so many things that I did wrong when I was younger and so many thing I wish I could take back.

"I felt every moment of that through your dance tonight. You are absolutely incredible."

Check out the dance and Gaga’s comments here: