All eyes were on Beyonce's belly during her performance at the Grammy Awards on Sunday night.

After being introduced by her mom, Tina Knowles, Bey hit the stage in a gold gown that brought attention straight to her growing belly. She sang "Love Drought" and "Sandcastles," less than two weeks after announcing she and Jay Z are expecting twins.

It was one trippy number that had everyone in awe on social media ... and left some concerned about the pregnant star's acrobatics with a chair.

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See some of the best reactions below, including one star who said it "seemed heavier on the narcissism."