This month, what's on offer in theartsdesk's Singles and Downloads veers towards the fresh and new rather than the tried and tested. We'll always chew over whatever's out there and right now these nine tunes speak loudest. Starting with carefree New York electronic punk frollicking, we also take on violent grime, Sixties-style guitar pop, Brit-pop hip hop, uncategorisable grunge cabaret and multifarious flavours of dubstep. Dive in.

Thank goodness for selective memory, because although I remember that pop music had something of a mid-life crisis between the sequin explosion of glam rock and the spittle tsunami of punk rock, I had been blissfully spared comprehensive recall of all the grizzly details. That is until I watched what turned out to be another of those cheap-to-make caffeine-charged documentaries which goes off on so many tangents that it’s hard to recall what it was meant to be about in the first place.

This month we have some unjustly hyped rubbish electro-pop, some unjustly ignored brilliant eletcro-pop, some postmodern retro-disco, some dubstep, some grime, some sampledelic New York punk, and, at the top of the pile, one of Britain's brightest young actors proves he's equally adept on the microphone. Thomas H Green and Joe Muggs plough loudly through the lot with glee and the odd barbed word.

Mark Ronson & The Business Intl, The Bike Song (Sony Music)

There are ways and ways to make novelty retro-pop. Mark Ronson, for example, has absolutely nailed it here. This song, with its almost unbearably sunny Lovin' Spoonful-styled harmony vocals slathered over an early-Nineties pop-hip-hop breakbeat with jaunty raps from Spank Rock, should be awful – should be so calculatedly faux-naif it makes you hurl – but it's just done with so much invention, so much out-and-out glee and such great hooks that it's completely irresistible and delicious.

Rihanna, Russian Roulette (Mercury)

I strongly suggest anyone who believes the sound of US mainstream pop is somehow homogenised and safe take another look at the current charts. Standing over them like android colossi are Lady Gaga and Rihanna - who not only look exactly as pop stars were always going to look "in the future", but sound apocalyptically insane. This song is in the standard melodramatic modern power-ballad style of writer/producer Ne-Yo, but the combination of Rihanna's piercing voice and the lyrics that circle in the non-specific manner of nightmares around death, obsession, loyalty and points of no return - with (no shit, Sherlock) a heavy whiff of sado-masochism - make it an incredibly harrowing but addictive listen.  The flip side to "Umbrella"'s promise of protection, it's scary pop music for scary times.  "Russian Roulette" on Amazon. "Umbrella" on Amazon. (JM)