Can't say that's TOO difficult, admittedly, but Nate had his moments.
I agree with you that "Bad Blood" should have been the followup on all formats for Bastille, by the way. "Flaws" was just too weak as a pop/etc. followup.
'Fire (Under My Feet)' is one of my favourite Leona songs, I think it's more creative and unique than a lot of the pop music on the radio right now.
I'm glad you got Sam's 'House Party' as well, I think it's his most underrated single.. it's so catchy. Also I kinda like how he does none of his stupid singing/talking **** in it.