Katelyn Ernst

Katelyn Ernst is a content creator who became known through her TikTok account katelynernst4. She built an audience by posting trending dance, lip sync, and modeling videos set to popular sounds. Her TikTok debut came in October 2021. One of her first modeling clips was captioned "Cheesy hoco dress video." In late 2021, she went indoor skydiving at an iFLY location. In April 2022, a dance she posted went viral, pulling in more than 3 million views. She has also been seen in TikToks wearing a University of Kentucky sweater.

Katelyn is 22 years old and was born on Friday the 13th of February 2004 in Charlotte, North Carolina. She is an American of Caucasian ethnicity, standing 5'4" and weighing 116 lbs. Her build is athletic, with measurements of 30-22-32 and a 30B bra cup. She has brown hair and brown eyes. Alongside TikTok, she works as a fitness trainer and a runner, and she also runs a YouTube channel. As of February 2026, she had gathered 1.3 million followers on TikTok, 563,000 on Instagram, and 32,300 subscribers on YouTube.

Her content often touches on personal topics. At 16, she got her first IUD to stop her periods, and at 22 she had it replaced. She talks about that experience openly on TikTok. A playful detail: she has a twin named Julia Ernstt, who appears on Babepedia as well.