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From Instagram DM to NBA Love Story
31 May
Summary
- Kourtney Kellar began modeling to fund her college education.
- She captured the Miss Texas International title in 2017.
- Isaiah Hartenstein messaged Kellar on Instagram in 2019.

Kourtney Kellar, the wife of NBA player Isaiah Hartenstein, has established a notable career as a model, influencer, and entrepreneur, mirroring her husband's rise in professional basketball. Kellar's journey into modeling began as a financial necessity during her college years at Henderson State University, where she studied athletic training. Her early work included campaigns for major retailers like Dillard's and Walmart.
Her profile expanded significantly after winning the Miss Texas International title in 2017, leading to opportunities in fashion weeks and magazine covers. Today, Kellar maintains a strong social media presence, sharing aspects of her family life and travels with her husband's NBA career.
The couple's relationship initiated in 2019 through an Instagram direct message, with Hartenstein complimenting Kellar's smile. Following weeks of virtual communication, they met and developed a strong connection. Hartenstein proposed in April 2022, and they married on July 29, 2023, in Newport Beach, California.
In May 2024, Hartenstein and Kellar welcomed their son, Elijah James, a joyous event that coincided with Hartenstein's significant contract signing with the Thunder. Kellar has embraced motherhood, sharing her experiences online and marking her first Mother's Day with heartfelt reflections.