Meet Ryan Leslie's ‘SuperPhone’: How This Hip-Hop Artist Turned Tech Entrepreneur Can Text Every Fan

When Ryan Leslie performed at Soho House during Social Media Week festivities in New York last week, his voice was smooth but occasionally dropped lower to rap. Music producer for the likes of Kanye West and 50 Cent, he sang his own songs like “Addiction” and “Diamond Girl.” Then he did something unusual for a celebrity: He gave out his number and urged his fans to “just text me.”