[mv] B1a4 _ Only Learned Bad Things(лє»лђњ Кіѓл§њ Л°°м›њм„њ) ✔

"" (못된 것만 배워서) is the second promotional single by the South Korean boy group B1A4 , released in 2011 as part of their debut mini-album, Let's Fly . Song Overview Album: Let's Fly (Debut EP).

The music video primarily follows member , who plays an inattentive and selfish boyfriend. B1A4 – 못된 것만 배워서 (Only Learned Bad Things) "" (못된 것만 배워서) is the second promotional

The lyrics were written by the veteran singer Wheesung , with composition by Lim Sang Hyuk, Jeon Da Woon, and Lee Sang Ho. with composition by Lim Sang Hyuk