What are some idols that seem like they can do a cute concept one moment and then do a sexy/mature/girl crush/badass concept another almost perfectly? Any soloists, boy group members, girl group members, co-ed group members, duo members, any J-POP or K-POP idol!
For me, I think that it's Sana and Jihyo. Sana completely wowed me going from Yes or Yes to Fancy in a few months or Happy Happy to Breakthrough in the same day.
Jihyo can literally fit any concept effortlessly, it's not even funny.