[Z]

My pet hate with girl groups is when there is a noticeably weaker vocalist/vocalists. I get it with boy bands too (hi Louis from One Direction), but it's more noticeable in girl groups I think because the industry standard seems to be to include a vocal powerhouse to take the lead vocals and then staff the group with filler... obviously those girls are usually the prettiest ones and that's why they're there, but when it gets to the point where they either don't sing on songs or they have two lines maximum, you wonder why they're even there...