ETC.: AUG. 24

Hard Rock Cafe Honolulu turns 20, and it's ready to celebrate with an extravaganza that includes indoor and outdoor concerts, food and festivities as a benefit for Kokua Hawai'i Foundation, the nonprofit environmental education organization founded by Jack Johnson. Barrington Levy, Natural Vibrations, Ooklah the Moc, Ten Feet and Go Jimmy Go will take the stage. Fans will have the chance to win autographed Gibson guitars and a surfboard signed by Kekoa Cazimero.

5 p.m.-2 a.m. Aug. 24 / Hard Rock Cafe Honolulu / $25 advance / 955-7383, www.hardrock.com.

STAGE: AUG. 24-SEPT. 23

Brad Powell directs the Obie Award-winning play "The Baltimore Waltz" by Paula Vogel. The Actors Group tackles this giddy, fleet fantasy based on the love and adventures of a brother and sister, one of whom has a fatal disease. Powell has a tip for viewers: "There are numerous references to the movie 'The Third Man,' with Joseph Cotton and Orson Welles. The audience might be interested in watching it prior to seeing the play." That's our kind of homework.

7:30 p.m. Thursdays-Saturdays, 4 p.m. Sundays, Aug. 24- Sept. 23 / The Yellow Brick Studio, 625 Keawe St. / $15, $13 seniors, $12 students and groups of 10 or more / 550-8457, www.honoluluboxoffice.com.

FESTIVAL: AUG. 25-26

OK, Ala Moana's McCoy Pavilion isn't exactly a day on Karpathos, but the annual Greek Festival is as close as we get here on O'ahu. This year's festival — the 27th — features West Coast Greek band Fotia, guitarist Sotos Kappas, The Nisiotes Dance Group and Balkan-music band Partners in Time. But of course the one thing everyone goes for is the food — squares of spanokopita (spinach pie), gyros, souvlaki, moussaka, Greek chicken, Greek salads. Wash it down with imported Greek beer, ouzo and biting retsina.

Noon-9 p.m. Aug. 25-26 / McCoy Pavilion, Ala Moana Park / $3, free for children 11 and under /521-7220, www.ssconhelhi.goarch.org.

CONCERT: SEPT. 1

Guerilla Union's "Rock the Bells" tour stops in Honolulu with hip-hop heavy-hitters Wu-Tang Clan, Bone Thugs-N-Harmony and MC Supernatural. Wu-Tang Clan has not been seen in Honolulu since 1999 and Bone Thugs-N-Harmony will perform material off its latest album "Strength & Loyalty." Freestyle champion MC Supernatural hosts.

7 p.m. Sept. 1 / Blaisdell Arena / $35, $45, $50 / 877-750-4400, www.ticketmaster.com.

CONCERT: SEPT. 14

Fresh off their Na Hoku Hanohano win for best contemporary Hawaiian album, the Barefoot Natives do an island-hopping concert tour. Why? "Because the Barefoot Natives love performing for the people of Hawai'i," says the band's press release. The twosome of Willie K, far right, and Eric Gilliom will play songs from their eponymous debut CD as well as some sneak previews of their upcoming "Slack Key Circus," due out in October. Reportedly cuts from the duo's debut album are being played on German and Dutch radio — could a European tour be in their future?

Time to be determined, Sept. 14 / Hawai'i Theatre / Price to be determined /

7:30 p.m. Sept. 7, Palace Theatre, Hilo / $32 advance, $37 at the door / 808-934-7010

7:30 p.m. Sept. 8, Kahilu Theater, Kamuela / $32, $37 / 808- 885-6868.

9 p.m. Sept. 15 / Lahaina Recreation Field / $5 at the gate / 808- 667-9175.

5 p.m. Sept. 16 / Kilohana Plantation, Lihu'e / $25 general, $35 preferred seating / 808-245-5608.

CONCERT: SEPT. 20

Los Lonely Boys Henry, Jo Jo and Ringo (yes, he's the drummer) Garza call their music "Texican rock 'n' roll" and they bring their honky tonk sound to Aloha Tower Marketplace's Events at the Tower on Sept. 20. Originally from a cowpokes-and-Airforce-Base town in west Texas, Los Lonely Boys established their sound in Austin and went on to win a Grammy for best pop vocal by a duo or group in 2005. On their latest CD, "Sacred," Willy Nelson guest vocals on "Outlaws" — any chance of him hopping over from Maui for a surprise appearance? Or he can just drive over for the Sept. 21 show in Kahului.

8 p.m. Sept. 20 / Events at the Tower, Aloha Tower Marketplace / $40 advance, $47 day of concert / 536-2161 , www.ticketmaster.com

7:30 p.m. Sept. 21 / Maui Arts & Cultural Center / $45, $50, $55 / 242-7469, www.mauiarts.org.

CONCERT: SEPT. 22

Call it the Haircut 100 show: Four bands known for their sculptured hairdos are in the concert Lost '80s Live. A Flock of Seagulls, When in Rome, Dramarama and Gene Loves Jezebel hit Events at the Tower at Aloha Tower Marketplace next month. Hey, with The Bravery and Interpol channeling the '80s, why not hear the real thing?

5:30 p.m. Sept. 22 / Events at the Tower, Aloha Tower Marketplace / $35 / 877-750-4400, www.ticketmaster.com.

FESTIVAL: SEPT. 22

Kaukahi, who took this year's Hoku award for group of the year, headlines this year's Windward Ho'olaule'a — "Homegrown Celebration" — at Windward Community College next month. Also in the lineup will be food, crafts, keiki games, a silent auction and high-tech Imaginarium shows that take visitors on tours of the universe. Part of the Celebrate Kane'ohe calendar of events, the ho'olaule'a honors, "the people and heritage of this community," said co-chairwoman Janis Chun. "The day will showcase WCC's programs and new facilities, local businesses, community groups and entertainers with ties to this side of the island."

9 a.m.-9 p.m. Sept. 22 / Windward Community College / free /235-7338, www.wcc.hawaii.edu/hoolaulea.

CONCERT: OCT. 23

New Jersey's premier rock 'n' roll sons (sorry, Bruce and Bon Jovi) play their 4/4 beat and reverb at Pipeline Cafe in October. Where Springsteen speaks to the blue-collar, fist-pumping Jersey guy, the Fountains of Wayne tell quiet, quirky stories of the Whitecollar Joe. On their last album, "Traffic and Weather" (the title itself evokes the daily concerns of the suburban commuter), lyrics include characters such as a Department of Motor Vehicles worker; Seth Shapiro and Beth Mackenzie, in an almost hook-up between two lonely, hard-working New Yorkers, and an exhausted couple at an airport baggage claim. Ever wonder where the Fountains got their name? Remember scenes in "The Sopranos" where Tony was shopping at a statuary shop? That's the real-life Fountains of Wayne, a Passaic County landmark.

8 p.m. Oct. 23 / Pipeline Cafe / $22 general, $45 VIP / 877-750-4400, www.ticketmaster.com.