Update: Em 'n' Ri, Roll Deep, Sats, Hoosiers

Apologies for the EIGHT HOUR delay - blame Olly Murs for being willing to be interviewed, blame Katy Perry for being willing to let people at her UK label play her new album to journalistic types, and blame us for being bloody rubbish when it comes to time management - but here, at long last, is today's midweeks update.

Em 'n' Ri are still fending off Roll Deep and Flo 'n' Davey G at the top of the singles chart, with The Sats just outside the top five.

Chase & Status's 'Let You Go' has neither risen nor fallen since yesterday.

One Night Only's 'Say You Don't Want It' remains at the edge of the top 15, with Inna's 'Amazing' a couple behind.

Iron Maiden are still ahead of Eminem and The Saturdays at the business end of the albums chart, with Arcade Fire and Plan B completing the top five.

The Hoosiers have slipped to the edge of the top ten, while Paloma Faith, Rihanna and The XX arecamong those breathing down their necks in the top 15.

We'll be more punctual on Friday. We promise. On Lady GaGa's life.