For any K-Pop group out there, having a song become a mega hit, so immensely popular that most Koreans know its melody, would be a dream come true. 

The 4th generation in the world of K-Pop is now opening up, and the possibilities for brand new mega-hits are endless. With that in mind, netizens have decided to look back on some of the most well-known, K-Pop boy group mega-hit songs of the beloved 2nd and 3rd generation.

Be honest, you at least know the melody to each of these songs listed here, right?

1. TVXQ - "Mirotic"

2. Super Junior - "Sorry, Sorry"

3. Big Bang - "Lies", "Haru Haru", "Fantastic Baby", "Bang Bang Bang"

3-1. Taeyang - "Eyes, Nose, Lips"

3-2. G-Dragon - "Crooked"

4. SHINee - "Ring Ding Dong"

5. 2PM - "Heartbeat"

6. INFINITE - "Be Mine"

7. EXO - "Growl"

8. CNBLUE - "I'm A Loner"

9. WINNER - "Really Really"

10. iKON - "Love Scenario"

11. BTS - "Fire", "Spring Day", "Blood, Sweat & Tears"

Which songs would you add to this K-Pop boy group mega-hits list?