Katy Perry Roars To Number One In Aus

Earlier this week, US superstar Katy Perry and local independent hip hop artist Kerser were locked in a battle for the top of this week's ARIA Albums chart.

But today it was Perry who triumphed, her Prism set dislodging triple j's Like A Version 9 compilation from the top spot - it drops to four, with Lorde' s Pure Heroine back up to two and James Blunt's Moon Landing slipping to three. It becomes Perry's second number one album here, with Teenage Dream her first in 2010.

That left the way for Sydney MC Kerser to land the top debut position for a local this week - his SCOT album making it in at five. In September the rapper debuted his The No Rest For The Sickest National Tour DVD at number one. SCOT is Kerser's third album and it's now also his highest charting.

Also debuting in this week's top ten is Linkin Park's remix album Recharged - featuring an array of EDM stars (Steve Aoki, Pusha T, Nick Catchdubs and Money Mark), it entered at seven. Just missing the top fifty is French techno artist (and Kayne West producer) Gesaffelstein, his Aleph album landing at 57.

But as Perry tops the album chart, she ends her reign atop the ARIA Singles Chart where Roar has been number one for nine weeks. Debuting at number one is X Factor winner Dami Im's Alive - her first original song, having scored a string of chart placings with covers she performed during the talent show's 2013 season. Im's also currently charting with And I'm Telling You I'm Not Going (entering at 29 this week), Purple Rain (back in at at 42), Hero (in at 62), Wrecking Ball (at 77) and Roar (back in at 94).

Im left a slew of big name releases in the dust this week, coming in ahead of singles from One Direction (in at three), Guy Sebastian (four), Katy Perry (11), Eminem and Rihanna (13) and Lady Gaga (way back at 31).

Last year's X Factor winner, Samantha Jade also hit number one with her first post-broadcast single and finally returned to the top ten in June with Firestarter - her only post-Factor album peaked at three last December. Previously, 2011 winner Reece Mastin managed two number one hits and two top three albums since his final (although his new single Girls debuted at a lowly 59 this week) while 2010's winner Altiyan Childs followed his only top three hit with a series of headline-making incidents that left him a commercial pariah.