Arctic Monkeys has confirmed that Josh Homme provides backing vocals on their new album, Suck It And See. Head here to read more details as well as what Alex Turner has to say about conciously making this album sound different to Humbug.
I though Humbug was very mature and artistic but it just wasn't as fun of an album as FWN, or WPSIATWIN. I'm glad they are switching this up because I like their upbeat songs like Fluorescent Adolescent. I'm more stoked now than if they said they were making Humbug 2.
I'm assuming he means more typical pop/rock song structures with a noticeable hook or something, as he goes on to say, "there's a reason why they're the classic structures." That's what I got from it anyways.