Lady Gaga dress red sunglasses necklace cleavage boob slip Beverly Club DeLeon Tequila Ciroc Party

Lady Gaga knows how to have a good time! The singer is set to perform at the MTV Video Music Awards this Sunday but she had some time to let loose Friday night before rehearsals today!

The Lady and her pals hit up The Beverly Club with a bar hosted by DeLeon Tequila and Ciroc Vodka and our source inside the party tells us: "Gaga was the ultimate guest -- everybody wanted to be around her and she was having such a great time, laughing and hugging everyone."

Gaga's opening tomorrow's awards show and she gave fans a hint at her highly-anticipated performance today, offering these words: "Right now, I'm obsessed with the archetypes of our psychology and all the different people we can become or have become in the past. Our potential for the future and how do we in our minds sort of compartmentalize our different personalities. So that's something that I'm fascinated with right now. It's almost as if I'm reviewing my life as a play."

In the words of Shakespeare (yes, we're quoting Shakespeare on X17online): "All the world's a stage; And all the men and women are merely players." In Gaga's case, the world is HER stage and she's the #1 playa'!