Sun tweeted, "Pretty pretty!! It's a song that reminds me of my 'So Hot' and 'Tell Me' days~~~hehe Congrats on your comeback, Ladies' Code!! :)", showing her support and recalling the good old days of her 'Wonder' years.
"Pretty Pretty" is the work of Super Changddai with a featuring by Yang Dong Geun. The song has a retro vibe as well as a catchy tune and choreography that is easy to follow along to, much like the Wonder Girls' hit songs. Sun's label mates 2PM's Nichkhun and Jun.K also tweeted their support for the song.
Ladies' Code returned with their first comeback stage on 'M! Countdown'.
Source: Sun's Twitter