The Internet is demanding to know whether Bradley Cooper and Anderson Cooper are related.

Apparently, there's not enough room in Hollywood to have two stars who share a last name. So, are they brothers? Maybe cousins? Uncle and nephew, possibly? Think again. It turns out the Silver Linings Playbook star and CNN anchor are friends but not relatives. Naturally, fans got confused when the duo recently jetted off to Tahiti together to enjoy a star-studded island vacay with their significant others.

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Fashion designer Diane von Furstenberg shared a pic on Instagram of the twosome that also included Girls star Allison Williams, her husband Ricky Van Veen, Anderson's partner Benjamin Maisani, and Bradley's girlfriend (and recent baby mama) Irina Shayk.

Diane captioned the photo, "Part of the funnest group ever! Bye Tahiti!" And like us, her followers were quick to comment on the post, with one person writing, "How the heck do you all know each other???? #lucky." Another user simply wrote, "Quite a crew!"

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Although he wasn't part of the group shot, Bravo host Andy Cohen also went along on the tropical getaway.

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Caught a silver fox swimming by a deserted island!

A post shared by Andy Cohen (@bravoandy) on

He posted a pic with Anderson, captioning the image, "Caught a silver fox swimming by a deserted island!"

Although it would've been cool if Bradley and Anderson were long lost relatives, we'll accept the fact that they're just bros — bros who take exotic trips together, that is.