Celebrate ice cream, pop stars and food all in one weekend. Revel in the tunes of two legendary pop divas Friday, then explore sustainable living and vegan eats at a food festival Saturday. Close out your weekend honoring National Ice Cream Day with free in-store treats and a chance to win free mochi for a year.

Friday

Beyoncé versus Rihanna Summer Dance Party

Who is a better pop diva: Beyoncé or Rihanna? Join the debate on the 9:30 Club’s dance floor Friday night for a dance party battle featuring hits from the two pop icons. The dance party is named “Drunk in Love or Drunk on Love?” based off the two artists’ popular songs.

9:30 Club, 815 V St. NW. Doors at 9 p.m. Tickets are $15.

Saturday

Shrub Life Festival

Black Broke Vegan, an organization that promotes affordable vegan living, and chef Curt Mariah are hosting an “all-ages, family friendly plant power party” at the Emergence Community Arts Collective Saturday. Head over to the festival to sample plant-based delicacies, learn about ways to make your lifestyle more sustainable and enjoy live entertainment. The event is not exclusively for vegans – anyone interested in learning about sustainable eating is welcome to join.

Emergence Community Arts Collective, 733 Euclid St. NW. Noon to 6 p.m. Entrance fee is $10.

Sunday

Free Mochi at UNIQLO Union Station

Ring in National Ice Cream Day with free ice cream at Union Station Sunday. My/Mo Mochi Ice Cream is partnering with the clothing store UNIQLO to create an in-store pop-up that provides free mochi throughout the holiday. Nine UNIQLO stores across the country have been chosen to participate in the event, including D.C.’s Union Station location. In addition to free mochi, shoppers can enter to win a year’s supply of My/Mo Mochi Ice Cream and a $500 UNIQLO gift card.

UNIQLO Union Station, 50 Massachusetts Ave. NE. 11 a.m. to 4 p.m. Free.