This week in new music: September 20 – 24, 2010

In case you’re tuning in for the first time this week, every Friday we’ll give you a roundup of our top music news stories:

Check out our photos of Alice in Chains, Deftones and Mastadon at the Molson Amphitheatre in Toronto.

No Doubt have revealed they’re planning a world tour in anticipation of their upcoming record.

Bruno Mars, co-writer of K’Naan’s “Wavin’ Flag”  has been arrested on suspicion of narcotics possession.

Watch video of As I Lay Dying at the Sound Academy in Toronto.

In this week’s Throwdown Shad’s “We, Myself & I” battles Chill Gonzales’ “Never Stop (Rap Mix).”

M.I.A. has released a funky new video for “Story To Be Told.”

Karkwa have won the 2010 Polaris Music Prize for their album Les chemins de verre (The Glass Paths).

We’ve got the video premier of The Mohawk Lodge’s “Done Fighting.”

Have a listen to a new Belle & Sebastian track "Come on Sister"

Chromeo performed the track “Night By Night” on David Letterman.

Our Download of the Week is “Lawren Harris” by Donovan Woods.

The gym teacher who inspired Lynyrd Skynyrd band name dies.

Mercury Prize winners The xx are auctioning off their stage gear for Amnesty International.

R.E.M. have finished working on their forthcoming 15th studio album.

Read our bio of Polaris Prize winning band Karkwa.

Watch Thom Yorke-fronted Atoms For Peace perform at Fuji Rock Festival.

Stone Temple Pilots have rescheduled their tour. Watch singer Scott Weiland’s drunken rant.

Feist has released the trailer for her new documentary Look at What the Light Did Now.

Listen to Gucci Mane’s “Lil Friend” featuring Bun B.

Joaquin Phoenix returns to Letterman to talk about I’m Still Here.

Our Track of the Week is “Secret Things” by Motorifik.

Winter Gloves perform “Trap the Mouse” and “Plastic Slides” at Sugar Beach in Toronto.

Check out our photos & review of M.I.A’s show at the Sound Academy in Toronto.

Photo by Jess Baumung, AUX TV