Korean YouTube phenomenon Psy is on course to claim his first UK number one.
Dance craze 'Gangnam Style' leads the midweek chart update by 6,000 copies, while The Script fall to two with 'Hall Of Fame'.
Flo Rida jumps from nine to three with 'I Cry', Taylor Swift is up to four with 'We Are Never Ever Getting Back Together' and Ne-Yo is at five with 'Let Me Love You'.
DJ Fresh lands just outside the Top 10 at 11 with 'The Feeling', while Paloma Faith is at 13 with her INXS cover Never Tear Us Apart.
Elsewhere, Conor Maynard advances to 16 with 'Turn Around', The Fray's 'How To Save A Life' is at 22 after X Factor exposure and Tulisa's 'Live It Up' is at 32.
Meanwhile, Mumford & Sons are on course to claim their first UK number one album with Babel.
The folk act's second studio set has sold nearly 90,000 copies so far this week, while Green Day's Uno! currently follows at two.
The Killers are down to three with Battle Born, Pink is at four with The Truth About Love and Britain's Got Talent stars Jonathan & Charlotte are at five with Together.
Deadmau5 lands at six with > album title goes here<, Lucy Rose is at 10 with Like I Used To and No Doubt are at 13 with Push And Shove. (source)
M&M, that is pretty good sales for the faltering market. Cheryl and Justin bieber for a whole only got about 30 , 35 k respectfully first week, awesome win for them!