Veteran idols nowadays have an incredible amount of songs under their belt. But each idol group has that one song that defines them, the song that each fanbase cherishes the most. Check out our list of idol groups' iconic songs below, not in any particular order:

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BIG BANG - Lies

Sure, Big Bang has changed their color since songs like "Lies", but this is the first song that shot the boys up to fame. "Lies" snagged in fans from not just Korea, but all over the world, cementing the group as one of the top contenders in K-pop today and setting the stage for every single song that would become a hit upon release. Runner Up: "Haru Haru"

2NE1 - Fire

"Fire" set up the basic groundwork for 2NE1. The girls do the best when they're telling haters and wannabes to get lost and letting everyone know how good they are, bouncing up and down on fast-paced rhythm. Sure, songs like "Lonely" or "Ugly" are amazing, but nothing says 2NE1 like their debut song. Runner Up: "I Am the Best"

SHINee - Replay

SHINee's "Replay" image is both a curse and a gift. While the boys cemented their popularity right from the start, they haven't really been able to break away from the image of little boys no matter what they do. Sure, fans will say they're 'men' now, but everywhere they go, they're still introduced with the 'boys who make noonas swoon'. Still, "Replay" is definitely the fan-favorite. Runner Up: "Ring Ding Dong"

Girls' Generation - Gee

Ah, the song that's famous for turning the girls' numerous antis into fans. "Gee" definitely shot these girls into securing the #1 spot. "Gee" set a new record on 'Music Bank' (even though it was recently broken), and was sung and parodied by everyone all over the world. In fact, the song is so good that the girls themselves have yet to catch up to its popularity with their subsequent releases, but the girls are definitely still going strong! Runner Up: Oh!

Super Junior - Sorry Sorry

This is what I call Super Junior's "Gee". (Actually, once they sang "Gee" while the girls sang "Sorry Sorry", and I gotta say both were pretty amazing.) The boys won their most awards with this song, and their follow-up rode the wave to be just as popular. "Sorry Sorry" is so iconically Super Junior that they still perform this song at ending stages and special stages. Runner Up: U

TVXQ - Rising Sun

One of TVXQ's most popular songs. Sadly, it is when they were five members, and strikes a sad chord everywhere whenever Yunho and Changmin perform it as a duo on special shows and ending stages. While TVXQ's "Hug" and "TRI-ANGLE" were hugely popular, it's "Rising Sun" that really set the groundwork for their popularity. Runner Up: Mirotic (also a TV5Q song...)

2PM - Again & Again

Similar to TVXQ, this is a song where the boys had 7 members, and also their big breakthrough. "Again & Again" cemented the boys' images as 'acrobatic-dols' and 'beast-dols'. 2PM is of course still huge, but fans have been craving something big like "Again & Again" for a long time. Runner Up: Heartbeat

Wonder Girls - Tell Me

This is the song that swept the nation for the year of 2007, setting long winning streaks and shooting Wonder Girls up into the stars. Some may say "Nobody", which is the song that has to be the most repeated song in all languages, but "Tell Me" is the Wonder Girls' real powerhouse. Runner Up: Nobody

miss A - Bad Girl Good Girl

Another debut song to add to the list. "Bad Girl Good Girl" was so amazing that it enthralled fans everywhere. miss A showed that all four of the girls in the group were amazingly talented through the song, and they've been reminding us that fact with every release. Runner Up: Goodbye Baby

T-ara - Bo Peep Bo Peep

T-ara has always had amazing songs, but "Bo Peep Bo Peep" finally cemented their style with the repetitive, addictive hook and choreography. We saw similar styles in their follow-up "Lovey Dovey" and "Roly Poly", and it seems to work really the best for them. The girls are the best with easy melody that gets anyone hooked, along with simple choreo that's fun enough for the entire country to follow. Runner Up: Lovey Dovey 

Kara - Mister

This is the only group that has a non-title song as their iconic song. Not even KARA or DSP Media were able to predict how much of a hit this would be, but it went on to become the song that everyone was dancing to instead of their title song. KARA's butt dance is still their most remembered move.  Runner Up: Pretty Girl

Sistar - So Cool

SISTAR is the best with their big-vocal songs with choreo that show off their amazing bodies. Whether it's a sad song like "Alone" or a upbeat song like their debut "Push Push", Hyorin belts out the notes and the girls flaunt their sexy bodies in the choreography. It's a formula that works every time, and we aren't complaining. Runner Up: Alone

Infinite - BTD

The song that gathered the most new fans was the boys' "Before the Dawn". The scorpion dance awed everyone, and this really set the boys as the masters of completely synchronized choreography. The image is still with them today, showing just how big the effects of "BTD" was on the general public. Runner Up: Be Mine

B2st - Bad Girl

B2ST is an incredibly diverse group that can fit the bill in any way they want. You want dark, sad songs? They have them. You want pop dance songs? They got those, too. How about the upbeat free-for-all songs? Well, they have that, too. Because of that, it's hard to define a 'style' that B2ST is good at - they're just everything. But still, their debut song describes them the best, as fun-loving boys who are really too good at what they do. Runner Up: Beautiful Night

Do you agree with our choices?