Extortion, a Kirk Knight solo joint selected as the lead single off Pro Era's forthcoming EP with Scion AV, won lukewarm reviews when it hit our frontpage last week. Now that they've had a chance to warm up, however, the East Coast collective return with something that will truly impresss their loyal fanbase. On Hail Razor, crew members A La $ole, Dessy Hinds and CJ Fly join forces to, well, raise some hell on the mic. Backpack provides a stark pizzicato string backdrop for their bars. Watch for The Shift to drop via ScionAV.com next Tuesday, May 27.