On June 8, IST Entertainment announced the temporary postponement of The Boyz's ongoing U.S. tour, 'The B-Zone in USA'. 

According to IST Entertainment, 

"The Boyz members Juyeon, Kevin, and Q, as well as a portion of the tour staff, have tested positive for COVID-19 while carrying out 'The Boyz World Tour : The B-Zone' in the U.S. 

After a through discussion, we have determinted that 'The Boyz World Tour : The B-Zone in USA' stops in Dallas and San Jose have been temporarily postponed. 

The agency is currently discussing details for changes to the upcoming tour dates, and so we kindly ask fans to understand that 'The B-Zone in Dallas' and 'The B-Zone in San Jose' involves numerous staff and affiliated partners, including the artists' management staff, the production team, the concert venue hosts, etc."

Originally, The Boyz's 'The B-Zone in Dallas' was scheduled to take place on the evening of June 8 at the Texas Trust CU Theatre. 'The B-Zone in San Jose', the final stop in The Boyz's ongoing U.S. tour, was scheduled to take place on June 10.