B2ST fires up fans with first live performance of "I'm Sorry"

10,000 loyal fans turned up to celebrate B2ST's impending comeback at a once-in-a-lifetime outdoor stage!

After pre-releasing the track "I'm Sorry" earlier in the week, they showed off the choreography to their song for the first time at the Maru Park in Seoul.

Heating up the summer night with a concert-like atmosphere, the group also performed to several of their hit tracks and show off a video thanking the fans for their efforts in helping B2ST rise to the top.

The 'beastly idols' are scheduled to make their comeback in July! Check out a fan-taken video of the performance below.

allkpop