She may only be 23, but Iggy Azalea got off to a good start with those of us a good decade older last month when the video accompanying her single “Fancy” - an homage to 90s teen comedy Clueless  - debuted online. Nostalgia sells, of course: any idiot with access to the nightwear department at Primark, where right now pyjamas featuring Alicia Silverstone and the rest share shelf space with My Little Pony, could tell you that.

It’s strange that probably most of the best-known Brazilian artists here are over 60 and from one state, Bahia - those being Caetano Veloso, Gilberto Gil, Maria Bethania and Tom Zé. Brazil is the size of Europe, though, and of course there are younger generations from other states. One of the leading new voices is Karol Conka, whose Brazilian electronica is as fresh as anything you are likely to hear this year.

The hip hop music of California has always been deeply stoned, and the wave of instrumental beats that have emerged from LA in recent years have taken this to quite some extreme. The scene around the Brainfeeder collective and Low End Theory club have, in fact, produced some of the most deeply psychedelic music of the 21st century, and Sam Baker aka Samiyam is one of the key figures within that.

I am increasingly finding it almost impossible to express just how bored I am by Miley Cyrus. I mean, seriously, are we really in such a fix that this guff is a serious talking point? A second-generation celebrity and former child star seems to be going off the rails a bit? OH REALLY, GOSH, THIS HAS NEVER HAPPENED BEFORE, PLEASE TELL ME MORE. A young female celebrity is flashing her parts? SWEET BABY JESUS ON A BORIS BIKE THIS IS AMAZING. A white pop star is crassly adopting the tropes of black culture? WOW NO WAY, YOU'RE LITERALLY SHITTING ME.

A casual observer might know Atlanta-born CeeLo Green as the rotund soul man who struck commercial gold twice in the last decade, as half of Gnarls Barkley, and then with his own “Fuck You!” in 2010. But the 39-year-old has a long and rich musical life aside from these projects, including most of the 1990s with the rap group Goodie Mob, part of the Dungeon Family collective which also includes the world-conquering Outkast as members and was instrumental in the rise to dominance of the Southern States in the hip hop world.

Just how loyal is the average hip hop fan? This was the question on many lips after the fiasco that the previous Wu-Tang tour in 2011 turned out to be. Their last sojourn on these shores was marred by members dropping out at the last minute and a general lack of organisation. There was pressure this time for the band to deliver.

This is not an easy record to get a handle on. When I first got it, I bounced through a couple of tracks idly, and it felt like it was coming from the messy genre fusions of the mid-90s – somewhere between trip-hop, indie-dance, rap-rock and mildly crusty festival-dub. There are growling guitars, indie-rock basslines, anthemic reggae horns, and frontman Joshua Idehen's voice, which lies somewhere between rapper, poet, singer and orator, all making it sound like a livelier take on Tricky, or maybe Roots Manuva fronting a rock band.

The Meltdown Festival has always been a fascinating proposition, getting a living legend in their field to curate their own personal festival line-up, and present all of their idiosyncratic choices to London in the refined and retro-futuristic surroundings of the Royal Festival Hall.

It was a carnival-like atmosphere and a packed house for the transatlantic trendsetters Major Lazer in Camden. Recent show reports suggested a more maximal and bombastic vibe from Diplo and his current sidekicks Jillionaire and Walshy Fire, but while the addition of these two stalwarts of the Caribbean music scene would suggest that the show was to be a faithful homage to the vibes of a Kingston dancehall or Trinidadian J’ouvert, this was sadly not the case.

It was a full house in Kentish Town for a homecoming show for grime pioneers Wiley, Skepta and JME. A far cry from the Sidewinder and Eskimo Dance parties that spawned so many of the scene’s main players, instead this was a night that carried an air of triumph, a "we made it" moment that inspired explosive performances and a fantastically receptive audience.