K-pop collabs are just one of the favorite things a fan can enjoy, due to its surprising nature of bringing idols together and perform on a stage. Collabs can also make unexpected friendships along the way between idols and fandoms, not to mention more dance covers.

The collabs really are good to see especially when you're not expecting it. While there are many collab performances and releases, here are a few collabs that got us hooked into K-pop.

With that said, here are 5 surprising collabs that went viral in K-pop!

1. 'Into The New World' Collab Stage by TWICE, GFRIEND, I.O.I., & Red Velvet

This unforgettable collab stage from these 3rd generation girl groups joins the list! Choosing SNSD's 'Into The New World' as their girl-group representative song, the combined forces of TWICE, GFRIEND, I.O.I. and Red Velvet culminates in a synchronized vibrant throwback to one of the most iconic songs in K-pop!

2. 'Hush' Collab Stage by Joy, Tzuyu, Yeonwoo, Mijoo, Sowon, & Jiho

The mature concept isn't uncommon in K-pop. 'Hush' from miss A will always be an exceptional song to bring out idols' sophisticated side, especially with the performance of Red Velvet Joy, TWICE Tzuyu, former MOMOLAND Yeonwoo, Lovelyz Mijoo, Sowon, and Jiho. The girls brought out their sexy side with their charisma, making it one of the most memorable collab stages for fans.

3. 'Bad Girl, Good Girl' Collab Stage by BTOB Minhyuk, Monsta X Minhyuk, Youngjae, & Bambam

Another iconic song from miss A, 'Bad Girl, Good Girl' was chosen for a collab stage, performed by BTOB Minhyuk, Monsta X Minhyuk, GOT7 Youngjae & Bambam. In a performance, anyone can perform anything and is not bound to any framework.

The exceptional 'Bad Girl, Good Girl' are mostly performed by female K-pop idols, due to its choreography, styling, and sassy feel. But the boys in the collab stage performance nailed it with their soft movements and swift vocals!

4. 'LOLLIPOP' by BIGBANG & 2NE1

BIGBANG and 2NE1 joins forces for an unexpected collab in 'LOLLIPOP,' which just screams 'YG Family' on its release! The song features a disco concept and a techno-pop song which is catchy for listeners, especially when the chorus hits.

The power of both groups is astounding, given how much both contributed in shaping K-pop. It's understandable to feel amazed just by seeing them perform together in one song!

5. 'Wow Thing' by Seulgi, SinB, Chungha, & Soyeon

This fan favorite is one of the songs that made 2018 memorable. With all-rounder idols like Red Velvet Seulgi, VIVIZ SinB, Chungha, and (G)I-DLE Soyeon, the spontaneous group made a viral hit in the K-pop scene.

Balancing vocals with robust choreo and rap, 'Wow Thing' is literally a surprise for many. Until now, fans are still wondering if there's going to be a live collab stage from the artists, implying its prominence.

Do you know more collab performances but are not on the list? Let us know in the comments below.

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Written by Israel Monte