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S.M.ROOKIES hum to 'Happiness' and dance to 'Growl' in new video

SM Entertainmentreleased a new video of theirS.M.Rookies.  These cute and pretty members are unable to getRed Velvet's "Happiness" out of their heads no matter what they are doing, and the boys are particularly adorable as they look up the girls' video and read their comments.



However, they turn on the charisma as they practice dancing toEXO's "Growl."  Check it out above to familiarize yourself better with the trainees before they make their big debut!