Matthew McConaughey recently celebrated his niece at her 15th birthday/quinceañera, and the footage is adorable.

Matthew, 54, showed his support for his brother Rooster’s family — especially his niece, Margarita (“Maggie”). At the party, and captured in the video below, he stood by Maggie’s side as she got ready for her celebration. In fact, in one of the clips, you can even see him styling her hair.

Mes Lab Studio, a Texas-based studio, shared a series of clips on their TikTok account, including the one below.

Some of the clips featured Matthew delivering a speech at the quinceañera, as well as dancing with his niece. You can also see Maggie dancing and singing with her friends. The entire event seemed to be filled with love, joy, and celebration.

Another TikTok posted by the same account sheds more light on Matthew’s contribution to the quinceañera.

“Fifteen years young, young lady,” he says into the microphone. “What did you tell me today two times? You are ready … And you will remember this day. If it ever gets tough, you got about a thousand people, it looks like, that are gonna be there to support you and remind you.”

The video then shows Matthew dancing with and swirling Maggie in her beautiful white dress and tiara.

“Just keep living, girl,” he concluded. “Love you.”

Fans Praise Matthew McConaughey, Niece, and Family for Keeping the Quinceañera Tradition Alive

According to Brittanica, a quinceañera is “the celebration of a girl’s 15th birthday, marking her passage from girlhood to womanhood … The quinceañera is both a religious and a social event that emphasizes the importance of family and society in the life of a young woman. It is celebrated in Mexico, Latin America, and the Caribbean, as well as in Latino communities in the United States and elsewhere.”

Matthew McConaughey hits the Dance floor at his niece's Quinceanera in Texas - YouTube

This rite of passage is best spent surrounded by loved ones — and fans loved that McConaughey prioritized showing up for his niece. They also praised Margarita and her parents for honoring the tradition.

“So happy and proud of the parents and Maggie,” one person commented. “Keeping our beautiful traditions alive! Gods blessings on the McConaughey family!”

“I absolutely love how they continued this tradition and included dads heritage too beautiful!!! Cumplanos Feliz!” another user added.