Isaiah Hartenstein

Quick Facts

Full Name Kourtney Kellar
Nick Name Keller, NBA girlfriend
Date of Birth March 8, 1991
Age 31 years old
Birth Place Texas, USA
Nationality American
Ethnicity White
Zodiac Sign Pisces
Mother’s Name Michelle Kellar
Father’s Name Michael Kellar
Sibling Michael Yancey, Ashley Westfall, Ronald Gubrud, and Lana Marker.
Height 5 ft 6 in (167 cm)
Weight 54 kg (119 lbs)
Body Measurement 34-28-36
Hair Color Blonde
Eye Color Grey
Sexual Orientation Straight
Shoe Size 7.5
College/University Henderson State University
Educational Qualification Graduated
Profession Model
Title Miss Texas International 2017
Boyfriend Isaiah Hartenstein
Marital Status Engaged
Children None
Net Worth $1 to $5 million
Social Media Instagram, Facebook, Youtube, Linkedin
Last Update  July, 2022

NBA player Isaiah Hartenstein‘s partner Kourtney Kellar is a well-known bikini model, a beauty pageant winner, and a social media star.

In addition, Kourtney Kellar was crowned Miss Texas International in 2017 and has worked as a commercial model for several well-known brands.

Most people know Kourtney as a viral girl from Logan Paul’s video. She went trending for days after her clip with Logan Paul went viral.

If you’ve ever wondered about the personal and professional life of the Kourtney Kellar, you’ll find out here. In the meanwhile, here are some basic facts about her.

Kourtney Kellar | Childhood

Kourtney Kellar was born in Texas, United States, on March 8, 1991. Michele Kellar (Mother) and Michael Kellar (Father) gave birth to her (Father).

Her father has a cardiac condition and has had many heart surgeries. In February 2017, he also received a new defibrillator to help manage his irregular heartbeats. Despite his illness, his father stood by her side and supported her during her memorable moments.

Similarly, Kourtney’s mother looks after the entire family and has been a huge influence and supporter of her.

Michael Yancey, Ashley Westfall, Ronald Gubrud, and Lana Marker are her four siblings. She also has a half-brother named Jarrett Crowe, who is her mother’s half-brother.


Kellar holds a Bachelor of Science in Athletic Training from the University of Florida. In 2013, she graduated from Henderson State University.

Kellar was an excellent student who was heavily interested in extracurricular activities. She has been a cheerleader since high school. She also obtained a university scholarship and was a large Co-Ed cheerleading captain.

Kourtney was also the executive secretary of the student activities board and the recipient of the emergency medical technician scholarship. She also holds an American Heart Association-accredited CPR certification.

Kourtney Kellar | Height, Weight, and Age

Kourtney Kellar was born in 1991, thus she will be 31 years old in 2022. Pisces are people born in March.

March Pisceans have a high empathy for people and can be overly compassionate when dealing with their difficulties. Kourtney as a person is fully defined by this. She was also born in Texas, USA, and identifies as an American of white ethnicity. She, too, is a Christian.

Kellar is also 5 ft 6 tall and weighs roughly 54 kg (119 pounds). Her stunning blonde hair and grey eyes set her apart.

Kellar enjoys going to the gym to maintain her lean figure. Her physical dimensions are 34-28-36.

Kourtney Kellar | Hobbies & Interests in Lifestyle

In terms of hobbies and interests, Kourtney has always been a fashion and model enthusiast. Despite holding a science degree, she followed a modeling profession.

Aside from that, Kellar’s favorite pastimes are traveling, reading, and swimming. She is a fitness nut who goes to the gym on a daily basis.

Kourtney, on the other hand, is a gourmand. Her favorite foods include chocolate cakes, ice cream, sandwiches, pasta, and pizza. In the summer, she enjoys drinking fruit juice and drinking coffee. Mojitos are her favorite cocktail.

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Diet Plan & Workout Routine

Kourtney Kellar works out at the gym and follows a healthy diet to keep her hourglass shape.

She normally eats bland foods for breakfast, such as low-fat milk or fruit juice, and sandwiches, as part of her diet plan. She generally eats fresh veggies and salad for lunch. And she starts the day with coffee or juice and nibbles of nuts and dried fruit before finishing the day with salads and desserts.

Kourtney gets up early in the morning to conduct yoga and stretching exercises before going to the gym. She also takes a half-hour morning walk.

Kellar practices pilates on a daily basis to increase her strength and stamina. As part of her regular job routine, she performs pushups, pullups, crunches, and squats.

Modeling Career of Kourtney Kellar

Kourtney Keller pursued a career in modeling and fashion after graduating from high school. Her modeling career did not take off until she was crowned Miss Texas in 2017.

Kourtney Kellar is a viral girl.

Anyone can fall for Kourtney’s beauty. Kourtney was already popular as a viral girl from Logan Paul’s video before she became an NBA girlfriend.

Logan Paul is an American YouTuber and the younger brother of legendary boxer Jake Paul. she went to take Jake’s winning interview after he had won a boxing match. He was charmed by Kourtney’s beauty as a ring girl.

Logan leaned in toward Kourtney during the live interview and muttered something to her. Kourtney grinned broadly and nodded. This video, and Kourtney, went viral.

Logan Paul and Kourtney Kellar’s flirtation video made headlines on several news sites, and Kourtney even trended for days.

Boyfriend & Relationships | Kourtney Kellar

Kourtney is now engaged to Isaiah Hartenstein, a German basketball player. The couple began dating on February 14, 2019, and their anniversary is on Valentine’s Day.

The couple has made their romance public and routinely posts about each other on social media. A day in the life of an NBA girlfriend was one of Kellar’s most successful TikTok videos, and it immediately went viral. In her game, she is also seen cheering him on like he is his biggest fan.

The height disparity between the duo is both exhilarating and endearing. Isaiah stands 7 feet tall, but Kourtney is only 5 feet 6 inches tall. That is the 14-inch difference! Nonetheless, this duo is adorable together.

The pair eventually took their romance to the next level after two years of a beautiful relationship. Isaiah Hartenstein proposed to Kourtney for marriage in April 2022.

The Concept

The couple was just hanging around in California’s Malibu. Isaiah dropped down on his knees and removed the stunning diamond ring. He finally proposed to Kourtney, asking whether she wanted to spend her entire life with him, and she answered yes without hesitation!

Hartenstein wanted to preserve this magnificent event and hired a videographer to do so.

Hartenstein openly announced their engagement in an Instagram post with the message, “Excited for the next step of our journey!!” I adore you @kourtney kellar #foe,”

Kellar also made her dating status public on Instagram. In German, she wrote, “Ich hab ja natürlich gesagt,” which translates to, “Of course, I said “Yes.”


Kourtney previously had a relationship with Chase Bryant. In the United States, he is a well-known singer-songwriter. The couple met during Chase’s private performance, where Kourtney was a promoting model.

Chase was smitten by her attractiveness and publicly expressed his desire for her. They began seeing each other after the concert and eventually fell in love.

They’d been together for quite some time and were even engaged. However, they called it quits in 2019.

Social Media Presence

Kourtney Kellar is active on social media and has thousands of followers. You can follow her on the following social media handles to be connected to her:

  • Instagram : 698K followers
  • Facebook: 3.1K Friends
  • Youtube: 841 Subscribers
  • Linkedin : 464 Connections

Kourtney  Kellar | Net Worth & Salary

The net worth of Kourtney  Kellar is estimated to be anywhere between $1 million to $5 million. She earned her net worth from her primary profession as a model.

Exciting Facts About Kourtney Kellar

  • Kourtney is a pet lover, and she has a dog named Oui.
  • Her favorite color is red, but she also loves monochrome.
  • Kourtney has learned boxing for self-defense from the coach.
  • She loves traveling; her bucket destination includes Dubai, Maldives, and Paris.
  • She considers dancing part of her exercise to keep her fit and healthy.

Frequently Asked Questions (FAQS)

Are Kourtney Kellar and Logan Paul dating?

No, Kourtney Kellar and Logan Paul aren’t dating. She is engaged to German NBA player Isaiah Hartenstein. After the flirting video of them went viral, many people regarded Kourtney Kellar as the new love interest of Logan Paul and started shipping them together.

But unfortunately, the ship did not sail as Kourtney was already in a relationship with NBA player Isaiah.

What is the modeling agency of Kourtney Kellar?

Kourtney Kellar’s modeling agency is Wilhelmina Models. It is an agency based in Austin, Texas. She has been signed as a model since January 2015.

She is also working with Julie Freeman Agency for seven years and The Sculp Agency LLC for eight years.

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