LE SSERAFIM’s Alleged Lip-Sync Performance Sparks Heated Debate

Recently, reviews regarding LE SSERAFIM’s performance at Japan’s Summer Sonic 2026 began pouring out online.

While they received many positive responses, some criticized them for allegedly lip-syncing throughout the performance.

They called them out for pre-recording the entire set, which they claimed was exposed when Yunjin and Sakura made onstage mistakes.

LE SSERAFIM pre recorded their entire set for their Summer Sonic performance, but Yunjin and Sakura’s mistake exposed them. pic.twitter.com/N9wZesi51J

— Hate Base (@TheHateBase) August 16, 2026

However, netizens were divided after seeing the performance.

• “After seeing the video, it is truly different. It’s not completely live, since there is AR in the back, but it is still live.”
• “The in-person live was good, though?”
• “What’s going on? Didn’t everyone say they did well just a few hours ago?”
• “It’s disappointing to see them doing this at a concert…it looks just like a music broadcast pre-recording.”
• “Even just listening to it, it doesn’t sound like live vocals.”
• “They only do lip-sync LOL… their skills don’t improve.”