Pakistan, Sept. 9 -- BTS Jungkook has reacted after Justin Bieber reposted a viral video of his shirtless moment during the group's Los Angeles concert. The unexpected interaction quickly caught the attention of BTS ARMY and Bieber's fans online. Jungkook appeared to notice the pop star's social media gesture and responded in his own subtle way. The exchange has added another fun moment to the singers' growing fan buzz.

Bieber reposted a video showing Jungkook revealing his defined physique during BTS' ARIRANG World Tour finale in Los Angeles. The clip came from the group's final North American concert at SoFi Stadium on September 6. Jungkook appeared onstage wearing an open denim jacket over his bare torso. The moment quickly became one...