Selena Gomez is now a billionaire. JB Lacroix/FilmMagic/Getty ImagesSelena Gomez is a billionaire.She amassed a fortune through multiple business ventures, TV shows, and brand sponsorships.But Rare Beauty makes up the majority of Gomez's wealth.Selena Gomez is officially a billionaire.Gomez appeared for the first time on Bloomberg's Billionaire Index on Friday when her net worth reached $1.3 billion.