LEDApple's Hanbyul covers Lady Gaga's 'Applause'

LEDApple's Hanbyul covers Jay Z and Justin Timberlake's 'Holy Grail'

LEDApple's Hanbyul covers 'La La La' by Naughty Boy for 'Music Note'

LEDApple's Hanbyul and Youngjun cover One Direction's 'Story of My Life'

LEDApple's Hanbyul and Youngjun cover One Republic's 'Counting Stars'

LEDApple's Hanbyul covers 'Demons' by Imagine Dragons

LEDApple's Hanbyul covers Miley Cyrus' 'Wrecking Ball'

LEDApple's Hanbyul sings Katy Perry's 'Roar' and takes you behind-the-scenes of 'Music Note'

LEDApple's Hanbyul gets his groove on with his cover of Robin Thicke's 'Blurred Lines'

LEDApple's Hanbyul sings his heart out to Adele's 'Someone Like You'

LEDApple's Hanbyul gets heads nodding along with cover of Bruno Mars' 'Marry You'

LEDApple's Youngjun, Gwangyeon, and Hyoseok bring out their instruments for the latest 'Music Note'