Believe it or not, some of us K-Poppers are becoming K-Pop veterans! Some of our favorite hits are shockingly more than 10 years old and just as we watch our favorite idols grow up and change before our eyes, we are aging along with them! Check out these 10 songs you wouldn't even imagine are already 10-year oldies but goodies down below!

Girls' Generation - 'Into The New World

Wonder Girl's - 'Tell Me'

TVXQ - 'HUG'

Super Junior - 'Endless Moment'

Brown Eyed Girls - 'How Come'

KARA - 'If You Wanna'

Big Bang - 'We Belong Together'

F.T. Island - 'Love Sick'

Jewelry - 'One More Time'

Epik High - 'One'