Sung Han-bin ends two-year 'M Countdown' MC run; Fans say they're "Shocked by sudden notice"

Sung Han-bin and Myung Jae-hyun stepped down after the Sept 4 broadcast, with viewers disappointed and "shocked by the sudden notice." Mnet representatives confirmed both hosts wrapped duties on Sept 4 and that a rotating special MC system will run until permanent successors are decided, according to official statements summarised by entertainment outlets. Coverage highlighted Sung's near two-year tenure marked by poised, artist-respectful hosting, while Myung Jae-hyun's departure-following Sohee's earlier exit-signals a full lineup reset. Reports also note producers indicated departure talks had been ongoing, though specifics were not disclosed, fueling further curiosity. The news landed just after ZEROBASEONE's Sept 1 full-album comeback and only two days before their 'M Countdown' stage, amplifying disappointment among fans who described being "shocked by the sudden notice" and wished for clearer advance communication. Posts pointed to a planned farewell segment in the final show, but late timing still shaped sentiment and sparked speculation over franchise timelines and schedules. Threads and community comments echoed frustration that the announcement arrived so close to promotions, intensifying the sense of whiplash. 'M Countdown' MC roles often rotate in under a year, making Sung's two-year stint comparatively long, with program histories noting (G)I-DLE's Miyeon at roughly 2 years 9 months as a recent benchmark. Beyond the music show, Sung fronted CJ ENM stages such as KCON and 'World of Street Woman Fighter,' reinforcing the "Mnet's Son" moniker through consistent live-event presence. The immediate move to rotating special MCs suggests continuity while producers test on-air chemistry and manage artist schedules before finalizing a new team. Attention now turns to whether rising or debuting idols join the rotation and how that aligns with broader franchise strategy over the coming weeks, as industry coverage posits. For ZEROBASEONE, first full-album promotions continue in parallel with post-MC activities, while observers watch for Sung's future broadcast slots and event emceeing opportunities given his track record. With successors still unnamed, speculation will persist until an official lineup is announced on the program's channels