Breaking News: Phoebe Gates Celebrates 22nd Birthday — with Cake and the ‘Best Team’ — as Mom Melinda Pays Tribute

In the images, Phoebe raised a glass and blew out the candles on a special blue cake.

“Thank you @phiaco,” she wrote alongside one party photo.Best team.”

In addition to funding groups that help women in need, Phoebe told the outlet that she has been working with activists in order to make the most informed decisions.

“There’s a tangible chance to make a change here,” she said.

the show, Bill reflected on how his daughter is very active on social media, using her platform to say, “‘Hey, I’m going to go promote the causes I believe in.

I’m going to promote this company that I’m building.’ ”

I get to control my schedule,” the billionaire philanthropist tells PEOPLE.

“So if I’m not having mostly good days, that’s kind of strange.”