Jungkook, who showed special affection for the group Cortis

Jungkook proved himself to be a true fan by belting out his junior Cortis's "Red Red" at a karaoke bar.
Yesterday, a video was uploaded to social media showing Jungkook seemingly belting out Cortis's new song at a karaoke bar.

Although the video only captures the karaoke machine screen and doesn't show the face,

Jungkook's voice continuing the rap captivated the fans' attention.

The heartwarming chemistry between the seniors and juniors is great.