When Selena Gomez launched Rare Beauty, she drew on a piece of advice from one billionaire friend — Taylor Swift . Speaking at the Fortune Most Powerful Women Summit on Wednesday, Gomez opened up about her friendship with the pop star and how Swift's words have shaped her management style. "She's one of the most brilliant people I've ever met. She is very strong in her lane, and she gives great advice all the time," Gomez said. "I'm not sure what I would say I've done for her other than been