Singer Brian Joo recently revealed his close friendship with TEEN TOP's Chunji by uploading a photo onto his Twitter on March 12th.

The singer wrote, "Currently filming MBC's 'Exploration of Genders' with Teen Top's Chunji. Please show lots of love to our new program. We're also going to Canada next week."

The photo shows Brian and Chunji's smiling brightly towards the camera, and fans were delighted to see the warm friendship between the two stars.

In response to the photo, fans commented, "I didn't notice this before, but you guys look alike", "Is this the birth of a new combination in 'Our Sunday Night'?", and "A historical meeting between a senior and a junior!"

In related news, Brian and ChunJi have become the new MCs along with Oh Man Suk, Jung Jun Ha, Choi Song Hyun, Jung Sun Hee, Shin Bong Sun, and more for the upcoming MBC program 'Our Sunday Night - Exploration of Genders'. The program will air every Sunday at 5:15pm KST.

Source: Brian Joo's Twitter