Pearl Jam Scores First No. 1 On Billboard 200 In 13 Years
Eddie Vedder (left) and Stone Gossard of Pearl Jam perform at Shepherd's Bush Empire on August 11, 2009 in London, England. Redferns

"Late Night With Jimmy Fallon" has a double Pearl Jam treat in store in early September. As part of its ongoing twentieth anniversary celebration, the Seattle band will be the musical guest on the NBC show on both Sept. 8 and Sept. 9. In addition, Cameron Crowe -- who directed the "Pearl Jam Twenty" documentary due next month -- will also be on the show on Sept. 8.

Pearl Jam, U2 Movies Get Toronto Film Fest Premieres

Pearl Jam and Crowe's upcoming appearance on "Late Night," tweeted by Fallon himself today, follows on the heels of the group's "Pearl Jam Twenty" festival Sept. 3-4 in Wisconsin and the kick-off of its Canadian tour Sept. 7 in Montreal. After "Fallon," the band and the director are reportedly headed north for the premiere of the "Pearl Jam Twenty" documentary on Sept. 10 at the Toronto International Film Festival.

The pair of September appearances marks the first time Pearl Jam has appeared on "Late Night With Jimmy Fallon," however guitarist Mike McCready has previously sat in with house band The Roots, guitarist Stone Gossard has previously performed on the show with his other band Brad, and McCready and bassist Jeff Ament have performed with their side project Tres Mts.

In other "Late Night" news, Fallon also tweeted today that he'll be hosting "Saturday Night Live" on Dec. 17th, with musical guest Michael Bublé. Former "SNL" castmember Fallon has repeatedly returned for guest appearances, but he has never previously hosted the show.