Wolf Alice are based in North London. I found their website link today through a link on Karima Francis's Twitter following list. On their bandcamp page they note that 'they write songs about their short lives on the Holloway road'. They released their Wolf Alice three track mini album in February and the three songs on that album are Wednesday, Destroy Me and Every Cloud.
There is a link to listen to or buy that album here.
Their twitter page is @WolfAliceMusic
This is their song that I liked the most; Wednesday.