Update: Pixie Lott, Lady GaGa, Jordin Sparks

Right then, here's what's going on in Wednesday's midweeks.

Pixie Lott's holding off Black Eyed Peas and Dizzee Rascal at the top.

Keri Hilson's 'Knock You Down' has neither climbed nor dropped since Sunday.

Lady GaGa's 'Paparazzi' is now just outside the top 15, while Linkin Park's 'New Divide' is on course to debut inside the top 20.

It's onwards and upwards for Jordin Sparks's 'Battlefield', which is now inside the top 25.

Pussycat Dolls' 'Hush Hush; Hush Hush' has cracked the top 30, but Kelly Clarkson's 'I Do Not Hook Up' has slipped out of the top 40.

So, do we think Pixie Lott's got No.1 all sewn up? How high can Lady GaGa and Jordin Sparks climb by Sunday? Just use the space below to make your predictions. The prize, in case you were wondering, will be the satisfaction of knowing you were right.