Red Velvet Wendy’s “Pissed” Reaction To NMIXX’s Lily Sparks Controversy

Following NMIXX‘s recent appearance on SBS’s Youngstreet radio show — famously hosted by Red Velvet‘s Wendy — a heated debate has erupted online.

| SM Entertainment

The JYP Entertainment girl group appeared on the show to promote their latest release, Fe3O4: Forward, and its title track, “Know About Me.” The radio show has become a must-attend stop for K-Pop stars during their promotional cycles, no small thanks to Wendy’s excellent hosting skills.

During the broadcast, Lily — as one of the group’s most talented vocalists — took on the challenge of singing live one of Red Velvet’s most vocally demanding songs…

| @nmixx_official/Instagram

…RBB (Really Bad Boy).

Known for its long, high notes, RBB is no easy feat to pull off. But Lily nailed it effortlessly, earning widespread praise online.

Red Velvet
2018.11.30 – RBB (Really Bad Boy) (Bridge) pic.twitter.com/tsv2RAfVqJ

— Red Velvet Bridges (@rv_bridges) October 7, 2023

However, Wendy’s reaction to Lily’s performance has sparked controversy. A viral post on X (formerly Twitter) — which has garnered over 3.3 million views and 76,000 likes — suggested that the Red Velvet star appeared “pissed” at Lily’s delivery.

WENDY WAS PISSSEDDDED DJDJDJDJ https://t.co/972fEcTScj

— ☆ (@loveordae) March 24, 2025

The viral tweet ignited a flurry of reactions from both NMIXX and Red Velvet fans, sparking intense debate across social media.

i never understand why kpop stans hate lily so much just because she is being a talented singer, mind you, both lily and wendy respect each other, then here come the kpop stans especially sm stans ruin such a good interaction between them https://t.co/vTZMoPUn3L pic.twitter.com/nuC8YLzFnv

— raininautumn (@Killianm1101) March 25, 2025

wendy and lily: https://t.co/SbSmLy6bPx pic.twitter.com/DteL5DmKwp

— milo (@yvesminds) March 24, 2025

almost had to go bar for bar 😭

— ᯓ★ (@joyholics) March 24, 2025

Some fans urged others not to compare the two idols, emphasizing that both are exceptional vocalists in their own right.

wendy had to act shocked because she doesn’t want ppl to know she gave birth to lily https://t.co/cQit0jqnO0

— flolikethisss (@4karinaa1104862) March 24, 2025

keep coming back to this bc of how impressive it is. rbb has never been covered by another idol bc of how vocally difficult it is. lily is the first idol to try and not only did she do it justice, but she did it live and in front of wendy. you can even see how impressed wendy is. https://t.co/3U5aGyfXTT

— reina🐈‍⬛☔️ (@AWHlTENIGHT) March 24, 2025

I hate when stan twt makes shady "praise" twts like this that only ends up pitting two women against each other. https://t.co/jRwG7GSLKo

— red 👻 (@celestialshon) March 25, 2025

What are your thoughts on the controversy? Was Wendy’s reaction to Lily’s performance out of the norm, or are fans looking too hard into it?