Inside PEOPLE and e.l.f.'s Exclusive Party Honoring the Great Billie Jean King

On the 50th anniversary of King's game-changing Battle of the Sexes match, the icon joined sports stars and celebs to celebrate all she's done and what's to come

Fifty years ago, Billie Jean King forever changed the scope of women's tennis when she beat men's tennis star Bobby Riggs in a match dubbed the "Battle of the Sexes."

In the years since, King, now 79, has worked tirelessly for equality in women's sports, most recently stepping out at the US Open to mark the 50th anniversary of equal prize money for both sexes at the annual tennis competition. Former First Lady Michelle Obama was on hand to praise King for her efforts.

“Billie Jean teaches us that when things lie in the balance, we all have a choice to make,” Obama said. “We can either wait around and accept what we’re given. We can sit silently and hope someone else fights our battles. Or we can make our own stand. We can use whatever platforms we have to speak out and fight to protect the progress we’ve made, and level the playing field for all of our daughters and their daughters.”

In honor of the major milestone, PEOPLE and e.l.f. SKIN threw a Women Changing the Game party in King's honor on Wednesday night, Sept. 20, at Manhatta in New York City, bringing together celebrities and stars of women's sports for an inspiring conversation with the legend.

Christie Brinkley and Billie Jean King

Billie Jean King and Bridget Moynahan

Soccer Stars Kelley O'Hara, Ali Krieger and Kristie Mewis with Billie Jean King

Marcia Gay Harden and Billie Jean King

Christie Brinkley and Padma Lakshmi

PEOPLE President Leah Wyar, Billie Jean King, Editor in Chief Wendy Naugle and Dotdash Meredith CEO Neil Vogel

Peloton's Ally Love and Jess King with Billie Jean King

Billie Jean King in Conversation with PEOPLE Editor in Chief Wendy Naugle

e.l.f. CMO Kory Marchisotto and Billie Jean King

Pinky Cole and Billie Jean King

Ubah Hassan, Dotdash Meredith CEO Neil Vogel and PEOPLE Editor in Chief Wendy Naugle

Folake Olowofoyeku and Bridget Moynahan

For more People news, make sure to sign up for our newsletter!

Read the original article on People.