Smiling and with their arms around each other's waists, the two sisters were in high spirits as they headed out together for the Chime For Change one year anniversary event in New York.
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Beyoncé and Solange Knowles at the Chime for Change event
The two ladies had even coordinated their clothing, both opting for plunging outfits for the charity party.
Beyoncé, 32, who had removed the braids she has been wearing recently, looked flawless in a white jumpsuit, while her 27-year-old sister chose a revealing orange blouse and white trousers.
The event was hosted by Gucci Creative Director Frida Giannini and T Magazine editor-in-chief Deborah Needleman to celebrate the work of Chime For Change, a global campaign to help strengthen and unite women around the world.
Beyoncé and Blake Lively
It's a cause very close to Beyoncé’s heart - she is a co-founder of the charity, along with Giannini and Salma Hayek – and on the night she dug deep and donated a large sum of money towards the good cause.
"At the Gucci Chime for Change event in NYC, Beyoncé just announced a personal donation of $500,000 to the charity," Women's Wear Daily tweeted.
The superstar certainly seemed to have a good time at the event, and was pictured chatting with Blake Lively, while Solange hit the DJ booth to entertain guests, including James Franco and jewellery designer to the stars Lorraine Schwartz.