BTOB is looking forward to their comeback with a 4th mini album, and they've already begun promoting with a 'Beep Beep' bus.

The 'Beep Beep' bus has pictures of the lyrics and words drawn all over it, and promotes BTOB's title song "Beep Beep". It's designed with cute animation, and has the words "Coming Soon BTOB" and "2014.02.17" drawn on the sides, front, and back to promote the group's upcoming album release date.

The bus started touring around Seoul starting last week, and has been spotted all around the city. It captures the public's attention with its adorable design, and is promoting the new album on major streets. Throughout the entire weekend it's been spotted by the public, and is quickly becoming a hot topic as it travels from community to community.

What's interesting to note is that the bus was designed by none other than BTOB member Lim Hyunsik's older brother. His brother is currently studying animation in Japan, and is known to have created BTOB's characters during their "Wow" promotions. It's heartwarming to see that Lim Hyunsik's brother has stepped forward again to help his younger brother's upcoming comeback with the bus design.

The bus is scheduled to travel around the city, greeting fans at various events and surprise promoting activities.

BTOB's 4th mini album title song "Beep Beep" will be revealed on the 17th. The song is the first time BTOB and Brave Brothers have worked together. Fans can look forward to BTOB's emotional vocals and a fresh and witty performance for their upcoming activities.