[AUDIO] Doubt – Mary J BLige Ft Taylor Swift By - November 25, 2015 0 226 Facebook Twitter WhatsApp Linkedin ReddIt Email Print Tumblr Telegram Digg Pinterest Mary J BLige got Taylor Swift on this for the new song titled Doubt. THe duo has been seen performing the song in events and even on the 1989 tour in L.A 2 days ago. Download, Listen and Share. Download