♬ Download on iTunes (Music) : https://itunes.apple.com/us/album/girls-generation-4th-mini/id826334410 ♬ Download on iTunes (Music Video) : https://itunes.apple.com/us/video/mr.-mr./id852768628 ☞ For more Information : http://girlsgeneration.smtown.com ☞ Facebook Girls' Generation : http://www.facebook.com/girlsgeneration ☞ Facebook SMTOWN : http://www.facebook.com/smtown ☞ Girls' Generation Official YouTube Channel : http://www.youtube.com/girlsgeneration ☞ SMTOWN Official YouTube Channel : http://www.youtube.com/smtown ♬ Girls' Generation 소녀시대_Comeback Stage '백허그 (Back Hug)'_KBS MUSIC BANK_2014.03.07 ℗ S.M.Entertainment