EXID revealed to a media outlet during an interview, "We're busy, so we sleep only about 3 to 4 hours a day.  Our bodies are having a more difficult time because our amount of sleep lessened, but mentality wise, we are happy.  We have no stress.  We rested for such a long time.. we're grateful," showing that they were so glad about the attention and love from the public that they didn't care about the longer hours they have to put into their work!  Still, they hopefully get enough rest...

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Leader Solji revealed, however, that they weren't the only ones jumping up and down in joy!  Their fellow singers who were in the same position as them proved ecstatic over the girls' success.  She explained, "Honestly, we're not signed under some big agency.  Our friends who are in a similar situation are very happy."

For their next concept, Solji said, "We decide on a concept based on the song.  When we chose 'Up & Down,' we did the sexy concept.  Likewise, next time, we'll probably choose a concept to emphasize the song."