From starting from humble beginnings with their debut
to their 2nd comeback, which is very underrated imo
to their breakout with smash hit Mister
to releasing one of their best tracks which was a clear shift in sound/image - LUPIN
to expanding on that sound with Jumping(couldn't find any gifs sorry lmao)
to releasing one of the best and most timeless KPOP songs ever; STEP
to releasing Pandora, this BOP and one of my first KPOP songs
To releasing quality aka Damaged Lady, where they really branched out for a more edgier concept
to going for a classier vibe with Mamma Mia, which is probably one of their most popular songs among I-fans
And finally this cowboy-themed bop aaah
They were really THAT group.
I think in terms of title track quality, they have one of the best runs. Every song is so iconic and high quality 
