CONCERTS: APRIL 12-13

Dante Terrell Smith is a Grammy-nominated hip-hop artist/actor, but you know him as Mos Def, and he's coming for two concerts. His most notable albums are "The New Danger," "True Magic" and "Black Star," a collaboration with Talib Kweli. He's been in films including "Bamboozled," "Brown Sugar," "Monster's Ball," "The Hitchhiker's Guide to the Galaxy" and last year's "16 Blocks" (below). The concerts are for those 18 and older. Krystilez and DJ XL also are featured; DJ Jimmy Taco hosts.

10 p.m. April 12 (doors open 9 p.m.); 7 p.m. April 13 (doors open 6 p.m.) / Pipeline Cafe / $40 advance, $50 general; $70 VIP / (877) 750-4400, www.ticketmaster.com.

CONCERT: APRIL 13

First there was "Chill," then "Special Delivery," "Flux" and now "onthe1: Bachi," three hours of beats and flow from local hip-hop playas new and established. KTUH DJ Jake the Snake hosts the all-ages event for those who live and breathe hip-hop. The performers: Kavet the Catalyst, Million Billion, Nomasterbacks, Soul Pacific, Tempo Valley, Bless'DChil' and DJ Observ, right.

7-10 p.m. April 13 / Hemenway Courtyard, UH-Manoa / Free / www.genuinehi.com.

BENEFIT.: APRIL 14

The goal is to collect more than 4,000 teddy bears of all sizes, shapes, colors and textures, even those up to 6 feet tall, at the Ward Warehouse stage, where some of Hawai'i's top entertainers will also perform, during the 10th Annual Teddy Bear Round-Up, themed "Show You Care ... Share a Bear." The community is urged to donate new or gently used teddy bears or other stuffed animals, which will be distributed to family shelters, children's hospitals and other organizations that aid families and children in crisis. The event is sponsored by Prevent Child Abuse Hawaii, the Hawaii chapter of Prevent Child Abuse America and Partners for Prevention in observance of Child Abuse Prevention Month.

11 a.m.-2 p.m. April 14 / Ward Warehouse stage / Free / 951-0200 .

STAGE: APRIL 18-22

"Altar Boyz," the off-Broadway hit spoof about a fictional Christian boy band, will be staged at Hawai'i Theatre. The show won the 2005 Outer Critics Circle Award for best musical off-Broadway and is on a national tour. The Boyz — five ultra-talented heartthrobs from Ohio — are lead singer Matthew (the pretty-boy hunk and leader of the pack), Mark (a sensitive young man with a deep faith in Cher), Luke (a bad boy with an "interest" in communion wine), Juan (a hot-blooded crooner with a passion for pretty girls) and Abraham (a nice Jewish boy!?).

8 p.m. April 18-20, 2 and 8 p.m. April 21 and 2 p.m. April 22 / Hawai'i Theatre / $26-$75; discounts for those 62 and older, military, students with ID, and Hawai'i Theatre members / 528-0506, www.hawaiitheatre.com.

FAIRS & FESTIVALS: APRIL 20-21

The 'Iolani School Fair goes south of the border with "Fiesta Fever," featuring entertainment, food booths, games, Xtreme amusements, cooking demonstrations, silent auction, crafts, plants and more. The new Cafe Ole booth boasts fajitas, tamales, taco salads and burritos; and there'll be traditional favorites such as malasadas, Hawaiian food, Portuguese bean soup and huli beef sandwiches. There are movies, too, at 7:15 p.m. each day on the football field: "Employee of the Month" will be shown on the big screen April 20; "Happy Feet" April 21. Proceeds benefit student activities.

Noon-10 p.m. April 20-21 / 'Iolani School / Free admission / 943-2339, www.iolani.org.

FILM FESTIVAL: APRIL 20-26

The Hawaii International Film Festival presents its 10th Annual Spring Showcase, featuring acclaimed and award-winning international films. On the roster: Hal Hartley's "Fay Grim," starring Parker Posey, left; "Waitress," starring Kerri Russell; Japan box-office hit "Hula Girls," featuring the music of Jake Shimabukuro; and "Bamako," co-starring and produced by Danny Glover.

Various times April 20-26 / Regal Cinemas, Dole Cannery / $10 general; $9 students, seniors, children, military; $8 HIFF members / 550-8457, www.hiff.org .

CLUBS: APRIL 21

Matt Costa, left, wowed them at Coachella; he's back for another chance to wow you. The Official Kokua Festival Afterparty features a full set performance from the guitar-strumming Costa, who was just in town January at NextDoor; Makana and other Kokua artists. A portion of the proceeds benefits Jack Johnson's Kokua Hawai'i Foundation. This afterparty is the next best thing to the Kokua Festival concerts at the Waikiki Shell, which are sold out.

Doors open at 9 p.m. April 21 / NextDoor / $20 / 548-6398, www.groovetickets.com, www.bampproject.com.

DANCE: APRIL 22

Brooklyn-based Reggie Wilson/Fist and Heel Performance Group, left, presents a night of blues/slave/worship movement in what founder/choreographer Wilson calls "post-African neo-hoodoo modern dance." The ensemble will perform its new full-length work, "The Tale Npinpee Nckutchie and the Tail of the Golden Dek," about human mating rituals, which blends South African stomping, vocal harmonizing and more.

4:00 p.m. April 22 / Paliku Theatre, Windward Community College / $25 general; $20 senior citizens, military, UH faculty and staff, UH Alumni Association members; $15 UH students and those 17 and younger / 483-7123, www.etickethawaii.com.