BTOB talked about topping charts for the first time since their debut four years ago during their showcase for 'Complete' on June 29.

After they revealed "It's Okay," they topped six different charts: MelOn, Mnet, Soribada, Genie, Olleh, and Naver!  Hyunsik said, "This is our first time getting first," while Eunkwang added, "I thought it was edited."

SEE ALSO: BTOB releases ‘Be Alright’ (One Take Ver.) Live Clip

Hyunsik continued, "The people at the company also smiled a lot and really yelled loudly." Changsub revealed that they had to put the video up at the same time as their music, but because they were so happy, this was delayed by 40 minutes.

Eunkwang said, "We went to eat barbecue together with happy hearts.  We were so happy."

Congratulations, boys!  You deserved it!