On March 11, Cube Entertainment announced that BTOB's 10th-anniversary concert has been postponed due to the members testing positive for the COVID-19.

On this day, the agency announced, "Due to the members successively testing positive for the COVID-19, the 'BTOB 10th Anniversary Concert BTOB Time [ B Together],' which was scheduled to take place from March 18 to the 20, was inevitably postponed."

The manager of the agency explained, "We ask for your understanding as this is a measure for a safer and better performance in the future. Details on the future performances will be announced after we review the artists' health. After confirming, we will make a separate announcement."

The offline tickets and online tickets that have been purchased by fans will be fully refunded through the Interpark Tickets without any additional fees.

Meanwhile, BTOB members Sungjae, Changsub, and Peniel tested positive for the COVID-19 the day before and entered self-quarantine. Three members tested positive on this day, following members Minhyuk and Eunkwang, who tested positive last month. Member Hyunsik also tested positive for the COVID-19 four days before.