The 20th annual Sioux Falls Jazz and Blues Fest will feature Little Feat, the Fabulous Thunderbirds, the Funky Meters, Jeff Lorber Fusion, Terrance Simien, Indigenous, Anders Osborne and others July 14-16. Pearl Jam and its various members will be busy this year: an Eddie Vedder solo tour, Jeff Ament's side project Tres Mts. is on tour and he's working on a solo album, drummer Matt Cameron is working on a Soundgarden reunion album and there are a Cameron Crowe-directed Pearl Jam documentary, an official book and a weekend festival to celebrate the band's 20th anniversary. Oh, a Pearl Jam album, too. The U.S. Postal Service will issue stamps honoring five Latin music stars: Carmen Miranda, Tito Puente, Selena, Celia Cruz and Carlos Gardel…. Robbie Robertson has enlisted Dawes as his backing band for a few TV and festival appearances to promote his first solo album in decades… Ke$ha has signed a deal for a custom line of condoms. Surprise: Jennifer Lopez and Steven Tyler will perform live on "American Idol" this season – probably before the finale… Hurry: Yanni will be interviewed live at noon today at www.livestream.com/officialyanni.... Motley Crue/Poison tickets, priced from $27 to $97, will go on sale Friday for the June 24 Target Center concert. Lupe Fiasco's "Lasers" landed at No. 1 on Billboard, with 204,000 copies sold. … Kelly Clarkson's fifth album, expected this spring, has been delayed until September… Queen drummer Roger Taylor said the band is working on some unfinished recordings by the late Freddie Mercury and Michael Jackson. Quote of the day from Jon Bon Jovi about iTunes in an interview with the Sunday Times Magazine: "I hate to sound like an old man now, but I am, and you mark my words, in a generation from now people are going to say: 'What happened? Steve Jobs is personally responsible for killing the music business."