Wonder Boyz released their new single, "Tarzan."

On May 14, the four-men group released the song to all music websites and will begin their album activities beginning this week.

"Tarzan" received a lot of attention especially with the featuring of Girls' Day Hyeri in its teaser.

Their debut song, "Open the Door," which was released last October, was able to achieve moderate success in K-pop with its fun, bad boy colors. "Tarzan" reportedly features strong, charismatic images, switching gears completely from Wonder Boyz's debut looks.

"Tarzan" was produced by Ryan S. JHun and David Rodman who have worked with SHINee, TVXQ, f(x), Lee Hyori and Super Junior. The song is a combination of reggae and dance.

Wonder Boyz's management company stated, "The members of Wonder Boyz are preparing for their comeback stage day and night. We hope to present the fans something completely new so please look forward to our return."

Wonder Boyz will stage their comeback performances on all major TV networks.