Lee Joon

A viral moment at a baseball stadium brought Lee Joon back into wide public conversation in 2026 — not for new music, but for a cheerleading appearance on the YouTube series *Workman* that generated more than 10 million views on YouTube Shorts. The clip, in which the former MBLAQ member threw himself into a one-day cheerleader role at Jamsil Baseball Stadium with visible physicality and enthusiasm, traveled far enough that he was brought onto *You Quiz on the Block* to explain the behind-the-scenes story. Born Lee Chang-sun on February 7, 1988, he has spent the years since his idol career navigating the longer, less charted territory of variety television and acting.

From idol group to variety fixture

Lee Joon first became known as a member of MBLAQ, the five-member boy group that debuted under J. Tune Entertainment. His profile within the group extended beyond performance into variety appearances, where his candid and self-deprecating energy became a recognizable quality. That instinct for unscripted television has defined much of his career in the years since, finding its clearest recent expression in his regular presence on KBS2's *2 Days & 1 Night Season 4*.

Variety presence and the *Workman* moment

The *Workman* Season 3 episode in which Lee Joon worked as a cheerleader for the LG Twins became the most-discussed episode of his recent activity. The YouTube Shorts clip surpassed 10 million views before the full episode aired, with the image of him cheering in a sleeveless shirt — what viewers quickly labeled the "triceps cheerleader" segment — circulating widely. His appearance on *You Quiz on the Block* in May 2026 gave him a platform to address the clip directly, describing the experience and the scale of attention as something he had not anticipated.

A separate viral moment emerged from *2 Days & 1 Night*, where footage of Lee Joon performing Choi Ye-na's "Catch Catch" challenge at a baseball stadium drew enough attention that the production arranged a video call between him and the original artist. The two performed the challenge together on broadcast for the first time, a segment that arrived after Lee Joon had publicly noted that the reaction to the clip was "not the reaction I expected." The *2 Days & 1 Night* episodes featuring Lee Joon during this period posted competitive numbers, with one broadcast recording a nationwide viewership rating of 6.8 percent and a peak scene rating of 9.2 percent according to Nielsen Korea.

Activities beyond television

Alongside his variety commitments, Lee Joon has maintained work in fashion and brand contexts. In April 2026 he appeared in behind-the-scenes material from a photoshoot for the men's fashion label Viverde, presenting a quieter, more composed register than the physical comedy of his variety appearances. He also appeared on the *Workman* YouTube channel in a separate segment visiting a matchmaking agency, where he discussed personal priorities including a stated goal to marry within two years — an appearance that contributed to his broader visibility during the same period.