, ▁the ▁second ▁single ▁has ▁seen ▁Ba ek ▁going ▁back ▁to ▁her ▁musical ▁roots , ▁as ▁Ez ▁Do ▁Dance ▁is ▁a ▁se xy ▁Latin ▁number . ▁She ▁performed ▁this ▁single ▁until ▁the ▁end ▁of ▁summer ▁ 2 0 0 6 , ▁at ▁which ▁point ▁she ▁finished ▁prom ot ional ▁activities ▁for ▁the ▁album . ▁In ▁November ▁ 2 0 0 6 , ▁Ba ek ▁won ▁Best ▁Fem ale ▁Solo ▁S inger ▁at ▁the ▁M K M F ▁Awards ▁and ▁was ▁nominated ▁for ▁the ▁O verse as ▁V iewer ▁Award . ▁ ▁On ▁September ▁ 7 , ▁ 2 0 0 7 ▁Ba ek ' s ▁sixth ▁album , ▁The ▁Six th ▁Mi racle , ▁was ▁released , ▁with ▁the ▁lead ▁single ▁" 사 랑 ▁ 하 나 면 ▁ 돼 " ▁( I ▁Only ▁Need ▁One ▁Love ). ▁She ▁won ▁an ▁award ▁for ▁the ▁album ▁at ▁the ▁Se oul ▁Music ▁Awards ▁in ▁January ▁ 2 0 0 8 . ▁ ▁Ba ek ▁under w ent ▁vocal ▁cord ▁surg ery ▁to ▁remove ▁a ▁c yst ▁some ▁time ▁in ▁February ▁ 2 0 0 8 . ▁Although ▁there ▁were ▁fear s ▁that ▁her ▁singing ▁voice ▁may ▁change , ▁the ▁fear ▁of ▁losing ▁her ▁voice ▁entirely ▁is ▁what ▁prompt ed ▁her ▁to ▁go ▁ahead ▁with ▁the ▁operation . ▁ ▁After ▁recuper ating ▁from ▁her ▁surg ery , ▁Ba ek ▁returned ▁with ▁her ▁sevent h ▁album , ▁S ens ibility , ▁released ▁on ▁November ▁ 1 4 , ▁ 2 0 0 8 . ▁It ▁was ▁reported