Ohh I never bothered to check Billie out, so this is the first time I'm hearing their song... it's uh... interesting.... Not really something for me lol
But I'm pleased to see Suyeon in the group! She did well in the performance, and seems to fit the group's image. I liked her in 999, so I'm hoping that Billie becomes successful, and that she can truely flourish here! Congratulations on debuting in the group, Suyeon! Fighting!