Kehlani, Jadakiss, Keyshia Cole. And now Erykah Badu dials up a remix to Drake’s top 10 hit “Hotline Bling.” R&B’s high priestess adds her psychedelic touch on the seven-minute “But U Cain’t Use My Phone” mix, which slows down midway through, with Erykah adding her own lyrics. Look for it on her upcoming mixtape But U Cain’t Use My Phone.