Boy group BAE173 is proving their strong popularity in Japan.

The group kicked off their fan concert tour across three Japanese cities, starting in Osaka on April 5, followed by Nagoya on the 9th, and concluding in Tokyo on the 12th.

The Osaka leg of the fan concert quickly sold out, signaling a successful start to the tour and highlighting BAE173's growing fanbase in Japan.

This marks their first solo concerts in Japan since their appearances on survival shows JTBC's "Project 7" and iQIYI's "Starlight Boys" last year. The enthusiastic response, with more than double the audience size compared to their previous Japanese performances, underscores their increasing popularity.

Local fans filled the venue even before the concert began, showing their passionate support for BAE173 with loud cheers. The members reciprocated this energy with Japanese commentary and engaging performances, meeting fans' high expectations.

BAE173 shared through their agency, "Thank you for waiting for us, and we will repay your anticipation."

Meanwhile, BAE173 is also preparing for project unit activities as Double0ne, which will include all the members of BAE173 and members of FANTASY BOYS who were on the same survival shows.

Meanwhile, BAE173 will continue their various events and fanmeet tour in Japan until April 12.

SEE ALSO: INFINITE’s Woohyun comments on viral fan interaction video