H1-KEY's song "Athletic Girl" is about a confident and independent woman who is unapologetic about her athleticism. She isn't in need of an escort or any kind of support, as she has her own hashtag and is dedicated to growing and improving herself. The lyrics encourage others to not judge or hold her back, but rather to support and admire her determination and abilities. The song is a celebration of women who are passionate about sports and fitness, and is a reminder to never give up on one's goals and dreams.