B1A4's sister group, Oh My Girl, had their debut showcase at the Ax Hall on April 20 where they brightened up everybody's day with their sweetness and childlike innocence.

Vocalist Binnie stated, "I'm nervous and excited because this is our first stage, but we will not make a mistake on the things we prepared and will show them to you well, so please watch over us prettily."

Lead vocalist Seunghee stated, "The company told the members to think of five possible group names, and we came up with names like Puzzle and Marshmallow.  When the company revealed it would be Oh My Girl, we at first found it awkward, but the more we listened to it, the more lovable it sounded."  They said the name stemmed from a desire for them to become 'my girl' for everybody.

YooA talked about the points of their choreography for "Cupid," explaining how they shot an arrow for one and another they named the diet dance because they saw a good dieting effect from performing it.  

They were, of course, asked what their B1A4 seniors said as advice.  Jiho stated, "B1A4 seniors stressed teamwork.  The seniors told us to trust and lean on one another.  Even now, I'm very nervous, but I think I am speaking calmly because my members are here."

SEE ALSO: Former Rainbow member Jaekyung marries non-celebrity boyfriend

Seunghee said about her appearances on 'Star King' and 'Superstar K,' "When I came out on 'Star King,' I was 11 at the time and now, I am 20.  I don't contact the unnies and oppas of 'Superstar K' anymore, but I feel in my heart that they are supporting me and receiving support."

They also expressed their desire to try writing lyrics and composing, just as B1A4 had done for them, so look forward to that!  Meanwhile, check out clips from the showcase.