2PM 'Go Crazy' in new album.

2PM finally released their much awaited new album "Go Crazy!" last night.

The album contains 10 songs including the title track, written, composed, arranged and produced by 2PM main vocalist Jun.K.

Following the release, "Go Crazy!" immediately topped Korean real-time charts. According to Instiz, which collects chart rankings, the title track became No. 1 on real-time charts on Mnet, Olleh, Soribada and Monkey3, No. 6 on Melon, No. 4 on Bugs, No. 3 on Genie and Daum Music and No. 5 on Naver Music.

The music video for "Go Crazy!" was released Sept.10, and has already garnered 2.6 million views on YouTube.

"Go Crazy!" is 2PM's fourth album and was preceded by "Grown," released in May last year.

JYP Entertainment, the boy band's agency, announced that 2PM will embark on the "Go Crazy" world tour starting on October 3 and 4 at Jamsil Indoor Stadium in Seoul.

2PM performed at the Mall of Asia Arena March last year.

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2PM performing 'Go Crazy!' on 'M Countdown' TV show (Photo: www.newsen.com)