Former first lady Michelle Obama will visit Fort Worth next month to celebrate activist Opal Lee’s 100th birthday.

The National Juneteenth Museum will host Obama on Oct. 7 at the Fort Worth Convention Center as part of its Uniting Voices Speaker Series. The event will honor Lee, a 99-year-old activist and retired teacher.

General admission tickets are available for $300. Preferred seating costs $500, and premium seating costs $750.

Lee, known as the “Grandmother of Juneteenth,” was pivotal in the movement to make Juneteenth a federal holiday in 2021.

The Fort Worth native attended Wiley College in Marshall, where she earned a bachelor’s degree in elementary education. She later received a master’s degree in counseling and guidance from North Texas State University, now the University of North Texas.