There are only a few events that can get so many A-listers in the same room. An

An awards ceremony. The Women's March. And, of course, Elton John's birthday.

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The music legend threw a huge event for his 70th birthday and decided to invite half of Hollywood—and because he's Elton John, everyone showed. Obviously.

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The event was held at RED Studios Hollywood and acted as a celebration of John's birthday, his 50-year songwriting partnership with Bernie Taupin and as a benefit for the Elton John Aids Foundation.

Lady Gaga and Stevie Wonder performed, leading the celebrity guests in what we can only imagine was a purely magical rendition of "Happy Birthday."

Oh, also Prince Harry appeared via video.

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Dakota Johnson showed up, wearing the floral dress of our dreams.

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Katy Perry was there in black sequins. Naturally.

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Heidi Klum stunned in a paint-splattered dress and the perfect red lipstick, making us all want to DIY our own versions of this masterpiece.

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And making us all believe in love was Neil Patrick Harris and David Burtka, gazing lovingly at each other.

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Happy birthday, Elton. May you continue to throw lavish galas in the name of your birthday for many, many years to come.

And may we one day receive an invite.