Ah Lily Allen, you have a lot to answer for. How were you to know that your unique sound and image would be saturated by swathes of pretenders all scrambling for a chance to sit on your perky, cheeky cockney-pop throne?

Supergroups are nothing new - but when a former member of Led Zeppelin and Nirvana form a new collaboration with Josh Homme, you really have to take notice.

Swedish doom-metal is not everyone's idea of an easy listen, but Katatonia - the five-piece from Stockholm - has thankfully evolved from the early days of grinding guitars, growling vocals and a distinct lack of tunes.

With only two original songs on the album (and both are co-written) it would be easy to dismiss Crazy Love as just another collection of the usual fare repackaged conveniently for the Christmas market.

Out Of Ashes may be catharsis and a necessary channel for the sort of creative purge that cannot be satisfied with Linkin Park, but as an album it fails to divorce itself from the sound Bennington is best known for.

With masterful production from Nick Raskulinecz, and excellent musicianship throughout, Black Gives Way To Blue is a painful grieving process manifesting as a huge triumphant behemoth of a rock album.

So back to Pearl Jam. Success does change bands. They don’t become lazy and complacent. They don’t stop trying. But they do move on, trying something different and challenging each other.

Hypnagogues is twisted, direct, melancholy, uplifting, dark and light.

With many well established genres, there are musicians who flirt with the accepted formula.

Oh Jet, how we have missed you.