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File this one under friendships we didn't see coming.

50 Cent is the king of odd collabs (he was rumored to be dating comedian Chelsea Handler and was in talks to do a duet with Bette Midler last year), and now he can add one more to his list - Goldie Hawn!

"I had lunch with Goldie Hawn she is [a] complete sweetheart," 50 Tweeted.

We can't imagine what the two had to talk about, but it looks like they had a great time!

Realtor.com

New grandparents (to Kate Hudson's baby boy Bingham) Goldie Hawn and Kurt Russell are apparently looking for something else new as well.

The longtime Hollywood couple is selling their Malibu mansion after owning it for about 20 years. But don't be fooled ... this house is no fixer-upper -- in fact, the pair fixed it up already with a complete renovation in 2005.

Hawn, 65, and Russell, 60, have spent much of their 29-year relationship in the home. And apparently you can put a price on love ... it's for sale at $15 million.

The house features several Asian-inspired statues (right) and rooms; Hawn is a Buddhist. There are also ocean views, fireplaces, walk-in closets, a gym and a guest house.

And it can all be yours for a mere ... $15 million. Of course, if you'd like to try before you buy, you can rent the beach abode for a breezy $80,000 per month.

But, perhaps our favorite feature of the house is its neighbors ... it's quite an eclectic group of celebs -- including some flat-out crazies. See who Goldie and Kurt have been living near after the jump, and check out all the pics of their mansion in our gallery below!

Goldie Hawn sported her trademark grin and bangin' bod while out jewelry shopping in Malibu. Maybe she was there to pick up a piece for pregnant daughter Kate Hudson? Hudson is expecting a child with Muse frontman Matthew Bellamy this summer, and recently opened up about how she knew things with Bellamy would be serious.

This will be the fourth grandchild for Hawn; she has grandsons Wilder and Bodhi from her son Oliver and grandson Ryder from Kate. It might finally be time for a granddaughter; Kate says she has a feeling this baby is a girl!

Check out Hawn, 65, working it sans sunglasses after the jump!

courtesy MrPaparazzi

A still-stunning Goldie Hawn graced the red carpet for the British Comedy Awards in London on Saturday and told Us how excited she was for daughter Kate Hudson's new baby:

"I'm excited! It's exciting. You know, we're just all very happy... happy for them both. What's more to say?"

Her partner Kurt Russell similarly told People, "It's fun having babies once again," and then added: "I think secretly we're all hoping for a girl."

Congrats again to Goldie and her fam!

Yesterday we spotted Goldie Hawn and Kurt Russell wandering around Aspen, but they aren't the only ones celebrating Christmas in Colorado! We also caught Jack Nicholson, Zoe Saldana and Real Housewife Kyle Richards out and about, and it looks like these celebs are eager to hit the slopes. But will snow bunny Kate Hudson come out of hiding with her beau Matt Bellamy (and her boobies) this winter? We know she's there!

After shopping with Bristol Palin in ten years a gal pal, Goldie Hawn grabbed some lunch at Blue Plate in Malibu, but she seemed to have some difficulty finding her keys in this massive Burberry bag. Still, Kate Hudson's mom was looking pretty good!

Nursing her break-up with A-Rod, Kate surrounded herself with friends and family in Aspen over the weekend, getting in a little retail therapy with son Ryder, brother Oliver and gal pal Elle Macpherson.

One photog asked Kate if what she really wanted to find underneath her tree this X-mas was "A-Rod all wrapped up in a bow" but she remained tight-lipped!

Seriously, these two are like ski resort royalty! I guess that would make Kate Hudson the Princess of Aspen...how do you guys feel about that?