The producers should pat themselves on the back for Lylas. They destroyed everyone on the episode. Lyric 145 was fun too, and showed energy and excitement. Sister C was pretty good, I'm not sure where this whole issue with their attitude comes from, they seem pretty normal to me. All 3 of the boy groups sucked, but Emblem3 or Playback will go through simply for the teen girl appeal.
Also, apparently Cece is the star of the "young adults", despite being fake, annoying, and an ok singer. She will go through, and I just don't get it.