It comes as no surprise that idol groups change colors as they continue growing from their debut days - they like to experiment and try out different genres for fun, and fans cannot get enough.  Whether their favorite groups are sexy, cute, or tough, these idols know how to pull off any color like chameleons.  Still, fans might prefer a blast from the past rather than something current or they might think the group they know now is better than ever.  Revisit some of your favorite debut tracks, jam out to their latest goods, and then decide which you prefer!

SEE ALSO: Shin Hyun Joon gets emotional after seeing a life-size cutout of the late Kim Soo Mi at the 'Ghost Cop' press conference

Girls' Generation

Debut:

Now:

SHINee

Debut:

Now:

Wonder Girls

Debut:

Now:

Big Bang

Debut:

Now:

4minute

Debut:

Now:

2PM

Debut:

Now:

EXID

Debut:

Now:

INFINITE

Debut:

Now:

miss A

Debut:

Now:

BTS

Debut:

Now: