[3][4] Westbrook, a former image consultant turned makeup artist, created her YouTube channel GlamLifeGuru, later renamed Tati, on November 7, 2010.

[11] In October 2019, she launched a cosmetic line named Tati Beauty, with her first product being a textured neutrals eye shadow palette.

In October 2020, Westbrook and her husband, James, were sued by former business partner and co-founder of Halo Beauty, Clark Swanson, for breach of contract, gross negligence and fraudulent inducement relating to Westbrook's vitamin line, Halo Beauty.

[23] In July, 2024 the lawsuit settled out of court with Westbrook announcing on YouTube that she was leaving Halo Beauty.

[26] In June 2021, Tati resumed her YouTube presence through a video entitled "A Year Later…," announcing her intention to revisit her original content format by creating makeup tutorials and reviews.