Kardashian and Teigen shared several photos from the fête on social media, including a group picture from the photo booth.
Pop star Meghan Trainor was lucky enough to get a photo birthday girl.
It was also during this hot party that Schumer made her ongoing relationship with chef Chris Fischer public knowledge.
Jamie Foxx, for example, showed up with a bottle of champagne for a special toast, while Chance the Rapper surprised Ellen with some flowers.
'Portia did the whole thing, she put the whole thing together. De Rossi revealed she is building the Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund, as well as starting the Ellen DeGeneres Wildlife Fund, which the animal lover tearfully called "the best gift anybody could have ever given me".
The most popular element of the party? Some people might be daunted about hitting their sixties, but the Finding Dory star appears to be taking it all in with absolute stride.
DeGeneres' birthday was on January 26, she celebrated it on her show by inviting some of her popular friends. Based on everything presented here, it's hard to argue otherwise. As it turns out, many of Ellen's musician friends provided free entertainment throughout the night - all thanks to Reese Witherspoon! And here's hoping nobody is nursing any particularly bad hangovers today.