Ten turns 20 in August and Pearl Jam are celebrating with their own festival-type thing over Labor Day weekend. The celebration will be headlined by the host band of course (it’s PJ’s only US performance in 2011), and as support they’ve lined up the Strokes, Queens Of The Stone Age, Mudhoney, John Doe, Joseph Arthur, Glen Hansard, and Liam Finn. It goes down 9/3 & 9/4 at Alpine Valley Music Theatre in East Troy, WI and tickets are available first to Ten Club members 5/23, then to regular folk 6/4. With any luck, Jam Of The Strokes Age will reprise their Marvin Gaye cover. Also in the works for PJ’s big anniversary are a Cameron Crowe doc and a book, both titled Pearl Jam Twenty. Finally, following PJpalooza, the band will hit Canada for ten shows. Check out those dates and more details on the fest at pearljam.com.