5 member rookie group B1A4 showed off a stage with a youthful sensation.

On the 5th, at the SBS 'Inkigayo' live broadcast, it featured B1A4's debut album 'Let's Fly' title track 'O.K' with an energetic stage.

On this day, at the broadcast, B1A4 was onstage in Red & White colour, giving the main idea of a youthful stage to the audience.

This debut mini-album's title track 'O.K' was written to follow the recent world-wide trend of rock based on powerful electronic sounds. You can tell how long B1A4 has been trained to be idols once your hear their cooling and explosive vocals.

Once you listen to 'O.K', the regal lyrics and addictive melody, together with B1A4's powerful vocd and perfect harmony unlike normal rookie groups, you will understand why 'B1A4' created a sensation.

On this day at 'Inkigayol' Geoboki, BGH to, Boyfriend, N-train, B1A4, 5 dolls, Sunny Hill, A-pink, Clover, December, Secret, Im Jeong Hui, Jewelry, Jang Wu Hyeok, Aftet school, Heo Young Saeng, FT Island, Baek Ji Young and Beast also appeared on the show.. (1picture credits: SBS 'Inkigayo' Broadcast capture)

Article Credits: Yahoo! Korea + zapsaple@ FLIGHTB1A4.COM
Translation: 바보 Vic @ FLIGHTB1A4.COM