“Turn Up Tina” has entered the building. Tina Knowles — businesswoman, fashion designer and mother to Beyoncé and Solange — marked her milestone 70th birthday on Jan. 4, and in a new Instagram post, she detailed her celebration and revealed a special performance from none other than Destiny’s Child.

“I have had the time of my life with all my beautiful friends from Texas and my friends from California. It’s been a spiritual weekend about the empowerment of kicka– women, just tough beautiful women filled with love,” she gushed in a video posted to her Instagram on Tuesday (Jan. 9). “I feel so loved. I had a little anxiety about turning 70, you know, but I’m so blessed to be here and I’m so blessed to have the life that I have, and the people I have around me. All the love … I just got spoiled to death this weekend! I even got serenaded by Destiny’s Child! How amazing is that?!”

Ms. Knowles spent her birthday in Malibu Beach — her “favorite place in the world” — and the occasion provided the Grammy-winning girl group another opportunity for a brief reunion. In fact, these impromptu quasi-reunions have become more frequent for Destiny’s Child over the past few months.

All five of the group’s core members — Beyoncé, Kelly Rowland, Michelle Williams, LeToya Luckett and LaTavia Roberson — reunited for a heart-warming group picture while backstage at Queen Bey’s record-breaking Renaissance World Tour, and the photo of the gathering was shared in December. Exclusive footage of the emotional Houston-hosted reunion appeared in the “Cuff It” singer’s box office-topping Renaissance: A Film by Beyoncé. Earlier this week, Beyoncé, Rowland and Williams teamed up to serenade Rowland’s husband, Tim Weatherspoon, at his 50th birthday celebration.

Destiny’s Child has earned 10 top 10 hits on the Billboard Hot 100, including the chart-toppers “Say My Name” (1999), “Bills, Bills, Bills” (1999), “Independent Women, Part I” (2000) and “Bootylicious” (2001). On the Billboard 200, the beloved vocal group has notched four top 10 entries, including the No. 1 titles Survivor (2001) and #1’s (2005).

Check out Ms. Tina Knowles’ full birthday reflections below: