Recommended:

T-ara's "cry_cry" and "Bo Peep Bo Peep"

Exo's "history"

Boa "only one" and "Eat you up"

Girls' Generation's "Say Your Wish" and "The boys"

After School's "AH"

A Pink's "Hush"

miss A's "Hush"

4minute's "volume up" and "HUH"

and fx's danger and la cha ta, NuAbo, hot summer, and electric shock are all good choices