It includes three collaboration songs between BEAST members, plus a full version of their fourth mini-album intro track "Lights go on again". The collaboration tracks were released after BEAST held their first concert, WELCOME TO BEAST AIRLINE, and performed those live. It was recently revealed that all three pairs would be making their official debut through 23 December's M! Countdown!.
‘When the Door Closes’ which is a ballad track was released on December 21, 2010. It has a sad melody line along with Yoon Doojoon and Son Dongwoon’s melting voice. Like the concert stage where the two men played the piano on the stage together, it plans to give that many emotions to the listeners as well.  On December 22, 2010, "Thanks To" which is a hip-hop track wil be released as the second duet song of the ‘My Story’ digital album. Yong Junhyung and Yang Yoseob had showed off their skills as idols stars by writing and composing ‘Thanks To’. With the fresh hiphop beat as the base, Yong Junhyung’s rapping will mix with Yang Yoseob’s vocals making a smooth and fierce sound overall. With lyrics ‘Thank you to all who always watched over us. You, You, Thank you, For you’, this song will be a love letter written to the fans for their love and consideration. On December 23, 2010, "Let It Snow" which is a pop and R&B track will be released.  On December 24, 2010, 'Lights Go On Again' will be released in a full version. Previously, it was the intro song of BEAST's fourth album 'Lights Go On Again' and was a track that received a lot of attention. It is a song that displays an acoustic sound and has a sentimental melody line and truthful and touching lyrics. 'Lights Go On Again' is filled with the gratitude that BEAST has for their fans, who have shone brightly for them while they were on stage with their undying support and love for the one year since their debut. They showed much enthusiasm to participate in the composition of the lyrics personally.