Super Bowl 50 hadn't even started, and it already had a showstopper: Lady Gaga.

Mother Monster looked appropriately patriotic in an all-red Gucci two-piece -- glittery, of course -- as she performed the National Anthem alongside a piano accompanist on one of the biggest stages in music and NFL history.

Super Bowl 50: Lady Gaga Will Sing the National Anthem 

Her voice sparkled as brightly as her star-spangled blue nails and those "red-slipper eyes," which she previewed on Instagram before she conquered the Super Bowl stage at Levi’s Stadium in Santa Clara, California. And for such a high-profile performance, Gaga didn't have to wear a poker face to hide her nerves. There were none.

"I'm so excited!" she told ET exclusively as she prepared to take the stage. 

Before taking the Super Bowl 50 stage, Gaga honored Whitney Houston, who famously sang the National Anthem in 1991 and is still considered one of the song's very best renditions.

"(It's) the most beautiful thing I'd ever heard," Gaga said during a pre-game interview shown on CBS.

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