After saying goodbye with "Soom" not too long ago, the B2ST boys are now back with a new round of promotions starting with the "2010 Love Sharing Concert" on November 14th. Having taken your breath away with "Soom" before saying goodbye, the B2ST boys now return to say the "Lights Go On Again" because you are "Beautiful." B2ST showed off their live skills in a performance that was styled like a musical, with an unique story line and choreography that captured the attention of the fans. Known for their impressive and powerful performances, B2ST also transformed into 'boyfriends' for their latest track, "Beautiful." Check out their performances now! B2ST's live performance was perfect aside from the audio accident that occurred near the beginning, surprising viewers. As soon as their intro performance began, concert staff members could be heard stating, "Intro, intro, ah surprised me, this is a broadcast accident." B2ST's background music was also off beat with the members' live singing. After their performance, MCs Yonghwa and Jo Kwon apologized, stating, "We'd like to apologize for the previous broadcast not going smoothly. We ask for your understanding." Netizens began commenting, "It's disappointing that they were met with this on their first broadcast performance," and "B2ST must've been upset. Maybe this is a sign of jackpot luck." Technically, it's Inkigayo, as "2010 Love Sharing Concert" is just taking its place this week.