At the SM concert, aespa performed f(x)'s "Rum Pum Pum Pum," but they're being criticized on forums like TheQoo for not performing live and lip-syncing.  

1. The styling also didn’t match them at all—it felt like it didn’t suit their vibe. I thought they would pull off f(x)’s color really well, but especially Karina’s outfit… is that for real?  

2. It really shows how well f(x.) could pull off their own concept.  

3. aespa has good songs and concepts, but their stage presence is really lacking. They struggle to bring their own songs to life, so naturally, their covers would fall short too. And those outfits... why do they look so heavy and cheesy? Plus, I’ve never seen them perform live.  

4. Amber was honestly so unique, and her rapping was really good. Even when Giselle and Karina tried to cover Amber’s parts, they just couldn’t fill the gap. That said, overall, the stage wasn’t bad.  

5. The part distribution felt off. The intro and the parts that followed after the intro just didn’t fit.  

6. Lip-syncing… they really blatantly lip-synced at a concert.  

7. Wait, they lip-synced?  

8. The intro was just not it.