P4K: Neutral Milk Hotel’s Jeff Mangum surprises Wall Street protesters with an acoustic performance. Watch the video.

Twitter: That Dillinger Escape Plan-Mars Volta-Mastodon-Jane’s Addiction supergroup has begun writing. Hell. Yes.

Daytrotter: Our friends in Santah are featured in their own Daytrotter session. Check it out.

Facebook: Rancid’s Tim Armstrong begins work on a musical series entitled RockNRoll Theater.

Adele: The British songstress cancels her US tour due to vocal illness.

AbsolutePunk: Famed punk drummer Adam “Atom” Willard leaves Angels and Airwaves.

Twitter: The remainder of Blackstar’s tour dates are cancelled. You can catch them tonight on the Colbert Report, though.

DCist: U Street lands a spot on the American Planning Association’s “Great Places in America” list.

Mashable: No iPhone 5, but here are a few reasons yesterday’s Apple event mattered.

MP3: The Temper Trap – “Sweet Disposition (Axwell and Dirty South Remix)”