During the press conference for mini-album 'Heart Attack' on June 22, AOA talked about entering the competition among girl groups for the summertime.  

Chanmi said, "It's an honor to be able to promote with our senior groups and we believe that there could be a lot to learn from closely watching the seniors.  However, we want to show charms that are unique to ourselves."

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ChoA added, "The seniors are so outstanding, but we have a lot of members, which I think might be our advantage . . . We often heard it was the girl group turmoil, so we wanted to avoid it as much as possible, but what we've talked of amongst ourselves is that these sunbaes do very well and we wanted to emulate them since we were training, but if we do our best on stage, the people watching us would all have a good time.  It would be nice if we got first place, but our goal is to go beyond that to do our best in order to show good performances."