On the February 24th episode of SBS's '1000 Songs Challenge', rookie group B1A4 revealed the meaning behind their name.

Before beginning to sing, MC Lee Hwi Jae briefly held an interview with the members asking them if there is a special meaning behind their group's name to which the members replied, "Be the one All for one".

"It basically means 'let's do our best as everyone expects us to'", the members explained.

In addition, after hearing from Lee Hwi Jae that they've been chosen as the "2012 K-pop star that is receiving the most attention", the members gave confused expressiosn to which Hwi Jae remarked, "Gongchan, your expression is telling me that this is your first time hearing of this news."

Gongchan replied back, "We all didn't know about it" causing everyone to laugh.

Other guests that appeared on this episode were Noh Sa Yeon, Kim Jin Ah, Kim Soo Geun, Ahn Yeon Hong, Lee Yong, Lee Hye Ri, Park Jun Hyung, and Yoon Sung Han.

Source: TV Report via Naver