Westbrook, a former image consultant turned makeup artist, created her YouTube channel GlamLifeGuru, later renamed Tati, on November 7, 2010. When she started, she knew little about cameras and editing. "At first, when I sat down to edit, it would be a twelve-hour process," she recalled in 2015, "Beauty tutorials still take a long time, but I've been able to get this down to three hours." According to Newsweek, she is "widely considered to be a progenitor of YouTube’s beauty scene" and "the mother of the YouTube beauty community." She reached the one-million subscriber milestone in early 2016. Westbrook primarily focuses on makeup and beauty reviews, tips, and tutorials. On October 25, 2019, she launched a cosmetic line named Tati Beauty, with her first product being a textured neutrals eye shadow palette.
Entrepreneurship
In February 2018, Westbrook founded and launched her own company, Halo Beauty Inc., which sells vitamin supplements. Westbrook makes an estimated $1.3 million a year from YouTube and Halo Beauty.
Controversy
On April 22, 2019, Westbrook posted an Instagram story in which she discussed feeling betrayed by the beauty community. A few hours prior to her post, fellow beauty YouTuber James Charles posted an advertisement for SugarBearHair, a competitor to Westbrook's company Halo Beauty. On May 10, 2019, Westbrook posted a YouTube video titled BYE SISTER... in which she claimed the feud between her and Charles was not only about advertising, but also about her history with Charles and allegations that he preyed on heterosexual men. She gained more than four million subscribers in a week as a result of the video, and Charles lost more than three million subscribers in four days. She reached a peak following of over 10.6 million subscribers. Charles responded to the claims on May 18 with a video titled No More Lies in which he shared his side of the story. Westbrook subsequently lost over a million subscribers, as well as eligibility for YouTube's Diamond Creator Award. On June 30, 2020, Westbrook posted a video on her YouTube channel detailing the events that led up to, and occurred after her BYE SISTER... video, in which she claimed Shane Dawson and Jeffree Star manipulated her into making the video against Charles.
