They've always been known for wearing skimpy outfits, but this time around, I think it's great they've gotten away from those what were essentially costumes they wore before.
I understand why they did it, though. When they were starting out, every performance, every photoshoot, every video, they wanted to remind people who was who.
As they matured, they gradually got away from that.
I like the song and I love how chic they all look.