"Zach is back!" reads a press release from local singer-songwriter Zach Blew, who has been living in Chicago for the past two years. But he's not only returned, he comes bearing new music — an "all-vocal, all-a capella, R&B/electronica EP" called Voicebox. (If you've watched the TV show The Sing Off, you have some idea what to expect; you can also find Blew's cover of the Beyonce song "Video Phone" on YouTube.) Voicebox is set to drop this summer; Blew premiers his new tunes at the Altamont Theatre on Friday, June 8. His band features local musicians Tom Leiner, Peter Councell and Drew Powell. Dathan Wilds opens the 8 p.m. show. $10 in advance or $12 at the door. http://myaltamont.com.