Leonie has been an important part of the Glückspilz brand since 2023, through which she went viral on all social media platforms together in 2024. She originally started as a part-time employee with no social media experience, but found her place in the world of social media. Despite her surprising career, she quickly became a viral phenomenon. She is now known throughout Germany as “the most unfriendly burger griller in Germany”, which has earned her a large fan base. Her strikingly gruff manner attracts people and makes her a real one-off in the social media world.