It's not every day that an artist covers their own song.

Sera Ryu, formerly of Nine Muses, recently released an acoustic version of the group's song "Wild." However, rather than merely singing the song as a solo artist, Sera rearranged the song to give it a sweeter sound than the original powerful dance version of "Wild."

The video was uploaded to Sera's YouTube channel, with two messages.

"I love this song. This is one of my songs that I came to like over period of time, " explained the description of the song.

Then, as a comment on the video, Sera wrote: "Hey guys :) I picked this song because I always wondered how it would turn out to b when i make changes. I was on stage one year ago, with this song, and I honestly had hard time jumping around full power then hit the high notes at the end of the song. Didnt like this song at all lol. I think Im (hopefully) musically growing up and maturing objectively. So for now, lets empty our minds. Travel with me."

Sera's honesty about her difficulty performing "Wild" is very forthcoming and different from most idols, who generalize the hardships of their performances. The fact that she is discussing freely how much she didn't like the song shows how separate she is from Nine Muses, and isn't clinging to her time as a member of the girl group.

There has been a slew of former idols who have spoken up about their times in idol groups; Sera's commentary on how the performance and singing were difficult together is just yet another. One of the most popular examples was a Reddit thread AMA (Ask Me Anything,) run by a former member of Tahiti.

Sera left Nine Muses at the end of June.