Playboy Mansion Last Grammy Dance In the Grotto?

2/14/2016 12:50 AM PST BY TMZ STAFF
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0212_Playboy-Mansion_gettyDiddy will be holding court at the Playboy Mansion right after the Grammys ... and there's a decent chance it will be the last party of its kind at the legendary spot.

Anyone can attend the charity event called the City Gala -- for a $1,500 minimum donation -- where Sir Richard Branson and ex Playboy covergirl Jane Seymour will share the stage with host Diddy. 

Aside from an open bar and a buffet, you can also catch a celeb poker game with Carl WeathersJohn SalleyTito Ortiz and Omar Benson Miller

Remember, the Bunny palace is now on the market ... so it's possible it won't be owned by a party animal like Hugh Hefner when the 2017 Grammys roll around. 

Ticket to hang with celebs -- $1,500.

Epic party memories (in the Grotto, if you dare) -- priceless.