2PM will be releasing their 4th regular album <GO CRAZY!> Grand Edition 2PM have comeback with their 4th regular album after 1 year and 4 months. They will be releasing a regular album and another Grand Edition made up of a total of 18 songs including the original, unit and remix songs. In the case of Grand Edition, the published record will be released alongside the regular album on September 15th but the online release will proceed about 2 weeks after the regular album on September 29th, noon. Grand Edition consists of the title song <GO CRAZY!> and 3 remix versions, which has become an issue due to Jun.K’s producing. It also includes many unit songs of the members. There are 4 unit songs and they are as follows; Jun. K and Wooyoung ‘Superman’. Taecyeon and Chansung ‘Please Comeback', Junho and Nichkhun ‘Love is true’. Taecyeon and Chansung ‘The World, Love’. First, the title song <GO CRAZY!>, which is included in the regular album, is based on disco and house music, a level upgraded of excitement and fun from their previous album. Jun.K, who wrote the melody and lyrics, got inspiration from people frequently using the statement, “GO CRAZY!” when making this song. The Grand Edition also consists of “GO CRAZY!” (BOYTOY Crazy Remix)’, “GO CRAZY!” (BOYTOY Vibe Remix)’, “GO CRAZY!” (djn&uuml;re VS. Fingazz Remix)’ Jun. K and Wooyoung’s unit song ‘Superman’ is a newly formed hip-hop song, sung about the inconsistency of people, including advice and criticism towards them. The funny lyrics are about having the need of a real-life Superman. Taecyeon and Chansung’s unit song ‘Please Come Back’ is a fast tempo dance song, including the message of a person missing their loved one after parting. Junho and Nichkhun personally took participation in writing and composing ‘Love is true’, a song about everlasting love, and wrapped it up with their sweet voices. Taecyeon and Chansung’s ‘The Word, Love’ is a song expressing the heart ache of someone inevitably saying goodbye to their loved one. Above this, ‘Like tonight’, is a song that you can get a real taste of 2PM’s groovy voices. ‘She’s ma girl’ is a song of someone feeling like the king of the world after falling in love. Chansung took participation in writing the song ‘Mine’, a song expressing the confidence of a guy pleading the trust of the girl he likes. ‘Awesome’ is a song about being very surprised to have met a woman of great charm. ‘Rain’ is a song reminiscing the emotions and sounds of 60s and 70s LP. ‘Boyfriend’ is a song made in collaboration of 2PM’s member Chansung and song-writer Shim Eun Ji, expressing a sense of peculiar and dreamlike mood. ‘Pull&Pull’, is a song written upon the source of pushing and pulling in a relationship. The Korean version of 2PM’s 4th Japanese single ‘Beautiful’, ‘Beautiful’ (Kor ver.)’. The Korean version of 2PM’s 2nd single ‘I’m your man’, ‘I’m your man (Kor ver.)’ are also included in the album.