Kehlani released her first studio album in 2017. (Photo courtesy of Atlantic Records) Troy Lafond Connector Staff “While We Wait” is the third commercial mixtape by R&B singer-songwriter Kehlani. She first came to fame off a string of high-profile features, including Cardi B, Calvin Harris, Eminem, Post Malone, Charlie Puth, Khalid, Chance the Rapper, Zayn,…