Just in time with the released of his collaboration album with Big Brother in Japan, Hallyu star Jang Geun Suk has announced to release his first full-length Japanese album in May.

According to his agency, YTree Media on March 23, Jang Geun Suk will release his studio album titled "Just Crazy" on May 23. His album, to be released in three different edition, will be composed of 11 tracks including title track "Crazy Crazy Crazy", "Let Me Cry" "Bye Bye Bye" and "Rain."

A teaser poster featuring Jang Geun Suk, which will be included in his upcoming album, has been unveiled as well. The poster shows Jang Geun Suk caught in chains and is looking into the camera with a sexy stare.

Meanwhile, Jang Geun Suk and Big Brother's mini album "Lounge H the First Impression" hit Japan on March 21. The album recently ranked #1 in pre-orders charts, proving that he has been recognized for his singing talent.