Highlights of the evening include a 'Veep' dance party!
What happens when the last Emmy award of the night is given out? After a few wardrobe changes and photo ops, TV's biggest stars are ready to let loose!
ET's insiders attended some of the evening's biggest after-parties, and got a glimpse into what the celebrities are like when the cameras are off.
WATCH: Julia Louis-Dreyfus' Veep Co-Stars Joke She's a 'Nightmare' on Set
Who hit the dance floor and who found the whiskey? Here's what we overheard and saw on Emmys Sunday:
Veep Dance Party: After a big win at the Emmys, Julia Louis-Dreyfus and her Veep co-stars were ready to dance! Anna Chlumsky had "dance fever" at HBO's Official 2015 Emmy After Party, and even got her co-star and Emmy winner, Tony Hale, in on the fun. Julia was also spotted dancing near her table when Robin Thicke's hit song, "Blurred Lines," started playing.
George R.R. Martin Celebrates His Birthday: The Game of Thrones author -- who turned 67 on Sunday -- was also seen at HBO's Emmy After Party. While his fans anxiously await his next book, George was calmly sipping whiskey. A great moment in the night was when a woman came over to take a picture with the renowned writer and sat on his lap.
MORE: Game of Thrones Makes Emmys History
Peter Dinklage Gets Some Air: The Game of Thrones star showed up to celebrate his Emmy win at HBO's After Party, but was overheard saying, "Can we go somewhere with air conditioning?"
Shoe Change: Tatiana Maslany ditched her heels for HBO's After Party. The Orphan Black star was seen sporting some black Vans instead of the strappy pumps she posed in on the Emmys red carpet.
Bar Flies: Lady Gaga and Taraji P. Henson were spotted grabbing a drink together at the 67th Primetime Emmy Awards Fox After Party.
Sofia Vergara's son, Manolo Gonzalez-Ripoll Vergara, actually managed to score a photo of Gaga at the shindig. "I asked for a picture, and she bent over," he Instagrammed.
Eric Stonestreet Gives Back: Amy Schumer's sister, Kim Caramele, got a really cool gift from Modern Family star Eric Stonestreet. "Thank you @ericstonestreet for giving me our Emmy card! That was super nice if you!" she tweeted.
Kim also revealed what goes down when the Emmys and the parties are all over. "Merry Christmas to all and to all a good I won an emmy," she wrote.
Humor definitely runs in the Schumer family.
WATCH: Andy Samberg's 12 Best Jokes From the 2015 Emmy Awards!
ET also got Amy to dish on what Jennifer Lawrence texted her following Inside Amy Schumer's big Emmy win. This will make you want to join their squad even more:
