10 K-Pop Remakes of other K-Pop Songs

There are plenty of songs in KPop that are covers or remakes of English songs (for example f(x) and SHINee have a lot), but there are also K-Pop remakes of older K-Pop songs. So, here are 10 of them including Be Natural, Girls' Generation and Love Equation! List of the songs: Girls' Generation - Lee Seung Chul / Girls' Generation Sunset Glow - Big Bang / Lee Moon-se Round and Round - Nami/ T-ara Open The Door - Wonder Boyz / Lim Chang Jung Love Letter - Click-B / Berry Good Happiness - H.O.T / Super Junior Be Natural - S.E.S / Red Velvet Love Equation - R.ef / VIXX What Should I Do - Sand Pebbles / T-ara My Old Story - Cho Deok Bae / IU I included only remakes with Music Videos but you can comment about every other remake you know or like.