1st gen

So last night I was listening to like the only two first gen groups I know (Click-B <3, and Sechkies) I also listened to the song by H.O.T (Candy) that SM reposted, but I would like to know of more songs that H.O.T has released And more groups from first gen!! : D (Isn't s.e.s. first gen too?)

Please note that this is just my way of defining the different generations of K-pop - different people may have different ways to define them. So I was thinking, "How would I define generations in K-pop?" - and here I am, somewhat inspired by the Pokemon franchise's generations to define the...