Forget about couple watching in Hollywood because it's all about BFF watching now!

We were left a little dazed when we heard that Lindsay Lohan and Kim Kardashian had become besties (who knew they had anything in common?!) and now Ke$ha has revealed that her new best mate is none other than Rihanna.

The pair have become close due to Ke$ha supporting RiRi on her Last Girl On Earth Tour.

Telling MTV News about her new gal pal, the Tik Tok singer said, “We have slumber parties and pillow fights and we braid each other's hair a lot. We talk about boys, naked.”

Eeek!

“Touring with Rihanna is incredible, you should come see it. It's really fun. I've been out with her for about two weeks now, and I just learn so much from her as a performer....She has one of the best voices of anyone I've ever seen live, and I kind of just take it as my opportunity to hype up thousands of people.

“It's epic. She's amazing live and her voice is just so good.”

We're loving the lady loving going on at the mo!

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