Nearly 5 years deep in the game and still being made to perform tribute stages for their seniors. Hew else but f(x)?
It just occurred to me that everyone active in SM right now (except Henry and CSJH if you can even count them as being active) has won some sort of Daesangs except f(x).
Hew else? Well, SHINee definitely fits the description. TVXQ frequently did that type of thing for H.O.T. The list could go on.
Can't speak much for SHINee though I don't recall them doing anything of the sort for any artist in recent years beside performing Balloons alongside TVXQ (though correct me if I'm wrong since I'm not a hardcore stan). As for TVXQ, they've performed Iyah live at maybe one concert and it was years ago anyway.
The list could go on, but you'd probably realise eventually that I wasn't being serious to begin with.
This reminded me that Luna's probably the most unappreciated singer in SM. She's their best female vocalist, better than Taeyeon, but she's not acknowledged for it at all.
They threw her a bone once by letting her go on Immortal Song, but that lasted like 3 episodes. She does musicals. That's it. You know who also does musicals? Key. Sungmin. Boram.