Katy Perry had the honor of performing at the White House last night (July 31) for 'A Celebration of Special Olympics and a Unified Generation.'

Can we add President Obama to the long list of Katy Cats? Maybe the President fell in love with her bubblegum pop tunes when he saw her perform at his 2012 inauguration! Whatever the reason, she was invited once again to perform for him and his guests at the dinner honoring the 46th anniversary of the Special Olympics and its founder, Eunice Shriver.

“We have just one of my favorite people performing tonight — Katy Perry,” Obama said (per E!). “She is just a wonderful person. I've just met her mom and now I know why she is such a wonderful person, but I just want everybody to know she is on tour right now and so for her to take time out to do this is really special, and so we really want to say thank you to her for doing this."

So sweet! Katy seemed pretty excited for and proud of the opportunity, too. She posted a photo of herself on stage — click here to see the pic — wearing a classy floor-length, shimmering gown.

She wrote: “What an incredibly beautiful evening being invited to sing at the White House for Potus, Flotus & many special Olympic attendees tonight to celebrate these incredibly inspiring men & women. I see them beyond their obstacles. I hope you can join me.”

Katy Perry looks gorgeous in her red lip and royal blue dress.

Pool, Getty Images

The all-white setup perfectly offsets her pretty blue!

Pool, Getty Images