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Mariah Carey attends the premiere of Tyler Perry's "A Fall From Grace" at Metrograph on January 13, 2020 in New York City.

Mariah put her impressive five-octave vocal range to the test in a video where she is swimming with dolphins and belts out a quick high note, delighting her new pal.

The way the dolphin reacted was so precious, it’s as if it knew what Mariah was saying, or was a huge fan. The video posted by Twitter user @nalaeanais received over 3.8 million views and over 38,000 retweets.

People on Twitter could not believe their eyes — or well, ears:

Mariah first posted the video on her Twitter back in 2019, which received over 8 million views. At the end of the video, you can hear her say, “Anything that makes them happy.”

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