Billie Jean King turns 75 next week, and, in celebration, the New-York Historical Society hosted an "early birthday party" for her on Wednesday, with guests including Maria Sharapova and John McEnroe ... 

As well as the likes of Cyndi Lauper, Sara Bareilles and Emma Stone.


One more! #EmmaStone #BillieJeanKing #HollyHunter #NonaHendryx What a great night! ????

A post shared by Cyndi Lauper (@cyndilauper) on

The event was also in support of the museum's "Billie Jean King: The Road to 75" exhibit, which is a tribute both to King's tennis career and to her work in support of gender equality. 

The collection will stay on display at the New-York Historical Society until Jan. 27.