I've been a K-Pop fan for over 10 years and I've noticed a lot of early gen artists are becoming forgotten by the rise of newer rookie groups. So I've created this list of a few artists and songs from them that I think new K-Pop fans should listen to. 

Girl Groups

Sugar (2002-2006)

Shinvi (2002)

Baby Vox Re.V (2007-2009)

LUV (2002-2003)

KISS (2001–2002, 2016)

M.I.L.K (2001-2003)

Black Pearl ( 2007-2012)

The Grace (2005-2010)

Papaya (2000 -2001)

Diva (1997-2005)

Boy Groups

K'POP (2001-2004)

R.ef (1995-1999, 2004)

NRG ( 1997–2005; 2017–2018)

JTL ( 2001–2003)

F-iV (2002-Present)

Brown Eyed Soul (2003–present)