Barbra Streisand Shares Star-Studded Photo With Lady Gaga, John Travolta And Kelly Preston

What happens when Lady Gaga, Barbra Streisand and John Travolta get together? They pose for photos, just like everybody else. 

Babs spent "a wonderful evening at home" with her celeb pals, including Ryan Murphy and husband Jim Brolin, over the weekend and she shared the best photographic evidence  -- it's pretty much the definition of star power. Just look at them all, casually hanging out at Barbra-freaking-Streisand's house, posing in front of all her books, being super famous. (And can we just take a moment to appreciate Gaga's "casual" attire of full lace bodysuit and voluminous wig?)

The "Applause" singer also shared a snap from the evening on her Instagram page , writing, "Saturday Night Fever with some wonderful new friends." See what she did there? ("Saturday Night Fever," John Travolta. Get it?)

Gaga shared a photo of her hugging Streisand, too, with the caption, "Barbra and me. what a completely amazing woman. #Funnygirls." 

Well that looks like the best night ever. Do you think they listened to "Barbra Streisand " together?

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