September 29 of this year Solange Knowles made history as the first black female composer in the history of the New York City Ballet, and her older sister, beyonce, and mom Tina Knowles-Lawson, were there to cheer her on. Knowles was asked to create an original score to accompany choreographer Jana Raisen’s Play Time for 10th Fall Fashion Gala at Lincoln Center, and the artist more than delivered. Her high-profile collaboration with the New York City Ballet was the highlight of the evening and a dream come true for Knowles.

No one understood more than her family how important this evening was to the “Way to Show” singer. That’s why Beyoncé and Knowles-Lawson reportedly slipped into the front row just as the show was about to start. Cut. From there, Queen Bey and Knowles-Lawson began photographing and videotaping the performance while Knowles watched her score come to life.

On Saturday, Oct. 1, Beyoncé posted a tribute to her “favorite sister” and accomplishments, along with a photo of Solange with flowers on Instagram. “My beloved sister, there are no words to express my pride and admiration for you,” the Grammy winner wrote. “You are prescient and one of them. Congratulations on being the first African-American woman to compose for the New York City Ballet. The play you wrote is phenomenal. I love you very much.”

Beyoncé ended her post with a nod to how amazing her little sister is. “May I suggest you don’t fuck my sister,” she added.

Proud mum Knowles-Lawson also shared photos from the event Instagram as well as an emotional tribute to her youngest daughter. “Two nights ago me and Beyoncé flew to New York for a very special night,” Knowles-Lawson captioned the photos from the evening. “Our baby Solange Piaget Knowles killed it at the New York Ballet, you can see she composed some great music for the ballet! Yes, and breath taking, the costumes were the most beautiful I have ever seen and the dancers and choreography are incredible!! ! The collaboration between the four people was simply brilliant. Every aspect is the best it could be!”

She continued: “Beyoncé, me and tons of friends screamed our heads off with crazy pride. Solange continues to knock down doors and make room for women of color in places we’ve never been!!! The audacity to feel like you belong in any and every place that exists when we want it! With hard work, talent, tenacity and drive, you can do anything! Hi hat has always been her belief system! Yes, and it inspires women of color to unapologetically occupy these spaces [sic] !! I love you, my pumpkin.’

Knowles-Lawson continued to share some photos from the after-party, including shots of her, Knowles and Beyoncé hugging after the show. For her part, Knowles kept her message of thanks simple: “🖤heart so full🖤,” she captioned a collection of photos from her historic night on Instagram.