Korean rock band FT Island's new album which dropped on January 31st has completely sold out just 10 days after it's release.

50,000 copies of the band's fourth mini-album 'Grown Up' was initially produced, and every last copy has been sold as of February 9th.

'Grown Up' secured the #1 slot on Hanteo's total album sales chart, and has maintained the top spot on weekly their weekly music chart until recently falling to #2.

Their title song has also achieved an all-kill on various online music charts such as Melon, Mnet, Olleh Music, and more.

This album is one in which FT Island wanted to prove how much they've matured and 'Grown Up' as musicians and have purposely filled it with only slow-tempoed ballad songs.

The band also won a #1 K-Chart win �on Mnet's 'M! Countdown' on February 9th, only a week after making their comeback.

Their agency FNC Entertainment stated, "We filled the album with ballad songs to show a change in musical style, and the response is even better than we expected. The supply in the retail stores which were ordered before the release have mostly sold out, and we are currently working on additional production to meet the demand."

Source & Image: IlganSports via Nate