Chords for 6LACK - Pretty Little Fears (ft. J. Cole) [Official Music Video] (). Spark is the smartest and most interesting app to learn and enjoy playing guitar. Spark is an all-around app for beginners and advanced players to learn any song with chords or master new skills with hundreds of lessons and games in Spark.Spark Chords|6LACK - Pretty Little Fears (ft. J. Cole) [Official Music Video]