Grime, which has had a large following in the higher reaches of the charts thanks to artists such as Tinie Tempah and Roll Deep, is described as: "a style of popular music combining elements of dancehall and hip-hop".
Dubstep, the genre of choice for artists including Magnetic Man and Katy B, is labelled as a "type of electronic popular dance music developed from drum and bass".
'Boyband' has also entered the latest edition, despite being a largely popular term used for several decades for the likes of Take That, Westlife and JLS.
The noun is defined as a "pop group, targeting mainly the teenage market, composed of young males chosen because they look good and can dance and sometimes even sing".
'Beatboxing' and online 'Cloud' services have also made it into the Chambers Dictionary update.
> OMG, LOL enter Oxford English Dictionary