# Katy Perry's on course to notch up her second UK No.1 with 'California Gurls'. Her closest - but not very close at all - competition? K'naan's 'Wavin' Flag' and the current chart-topper from Shout For England.
# Kylie's 'All The Lovers' has slipped a couple of places since Sunday, but Lady GaGa's 'Alejandro' has climbed a couple.
# Scissor Sisters' 'Fire With Fire' is currently singing the fringes of the top ten.# Kelly Rowland's 'Commander' has cracked the top 15, while B.o.B. and Hayley Williams's 'Airplanes' has guided into the top 20.
# Over on the albums chart, Eminem's odds on to notch up his sixth UK chart-topper - in fact, he's practically outselling the rest of the top ten combined. Oasis are holding onto second position, with Example, Miley Cyrus and Plan B completing the top five.
