8 pm: Jazz

The Jazz on the Latin Side All-Stars, featuring Poncho Sanchez, Justo Almario and Alex Acuna, will honor mentor and master drummer Francisco Aguabella at the Jazz Pilgrimage 2001 concert at the Ford Amphitheatre.

* Jazz Pilgrimage 2001, John Anson Ford Amphitheatre, 2580 Cahuenga Blvd., L.A., 8 p.m. $20 to $25. (323) 461-3673.

2 pm: Art

With “Dialogues in Contemporary Art: David Hockney,” L.A.’s favorite expatriate painter makes a rare lecture appearance discussing “Photography and Painting: Their Past Relationship and Their Future Relationship” at the Omni Los Angeles Hotel. The lecture is presented in conjunction with MOCA’s “Ralph Tornberg/Museum Director’s 2001/2001 Lecture Series” and the current exhibition “David Hockney Retrospective: Photoworks,” which is devoted to the innovative photographic works of the British-born artist.

* “Dialogues in Contemporary Art: David Hockney,” Bunker Hill Ballroom, Omni Los Angeles Hotel, 251 S. Olive St., downtown L.A., 2 p.m. $10; students and museum members, $5. Reservations required. Tickets will be held at the door and can be picked up after 1 p.m. Tickets not claimed by 1:45 p.m. will be released for standby purchase. Seating is on a first-come, first-served basis. (213) 626-6828.

10 am: Family

A misfit clown school student searches for the proper headgear for graduation and comical mayhem ensues in Circus Millenia’s family show “Hats.” The outdoor event features acrobats, jugglers, unicyclists, upside-down waiters, human hatracks, a nightclub diva on a trapeze and audience participation.* “Hats,” John Anson Ford Amphitheatre, 2580 Cahuenga Blvd. East, Hollywood, Saturday, 10 a.m. (craft activities, 9 a.m.). Adults, $4; children, free. (323) 461-3673.

7:30 pm: Pop Music

KPWR-FM’s (105.9) Back to School Powerhouse 2001 ushers in the teachers and the books to a hip-hop score, with Nelly, the St. Lunatics, Xzibit, Ja Rule, Da Brat, Jurassic 5 and Ludacris among the acts benefiting the Knowledge Is Power charities.* Back to School Powerhouse 2001, Arrowhead Pond, 2695 E. Katella Ave., Anaheim, 7:30 p.m. Sold out. (714) 704-2500.

2 pm: Pop Music

A Weenie Roast with smog? KROQ-FM (106.7) expands its concert calendar to include a late-summer entry, adding an Inland Invasion to its slate of Almost Acoustic Christmas and Weenie Roast events. SoCal bands, headed by the Offspring, Weezer and Incubus, dominate the day.* KROQ Inland Invasion, Glen Helen Blockbuster Pavilion, 2575 Glen Helen Parkway, Devore, 2 p.m. $36. (909) 886-8742.

8:15 pm: Pop Music

Long Beach’s own Lupillo Rivera has emerged from the tough world of corridas --narrative ballads depicting an often violent world of crime and corruption--to become a rising star in Latin music.* Lupillo Rivera, Universal Amphitheatre, 100 Universal City Plaza, Universal City, 8:15 p.m. $24 to $74. (818) 622-4440.

8 pm: Theater

“Hair Pieces: By Women, About Hair” is a bill of short, multiethnic plays about the world of women and hair. Conceived and directed by Jan Lewis, it features works by Hallie Hobson, Velina Hasu Houston, Susan Merson, Diane Rodriguez, Ellen Sandler, Caridad Svich, Elizabeth Wong and Jenna Zark. * “Hair Pieces: By Women, About Hair,” Fountain Theatre at Hudson Mainstage Theatre, 6539 Santa Monica Blvd., Hollywood, Thursdays to Saturdays, 8 p.m.; Sundays, 3 and 7 p.m. Ends Sept. 16. $20. (323) 663-1525.

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Freebies

* In “A Salute to Hollywood Songwriters,” Corky Hale, Sally Kellerman, Lee Lessack and Steve Tyrell will join with famed composers Jay Livingston and Ray Evans, Jerry Leiber and Mike Stoller, Paul Williams, Jeff Barry, Lamont Dozier and Lew Spence in performing their songs and also tunes by Johnny Mandel and David Raksin at the Beverly Hills Civic Center Plaza, 450 N. Rexford Drive, 8 p.m. (310) 285-1045.

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* The Tiki Beach Festival and Polynesian Spectacular will feature live music, arts and crafts, entertainment, contests, canoe rides and more beach-type events, in the Belmont Shore area of Long Beach near Granada Avenue and Ocean Boulevard, 10 a.m. to 6 p.m. (562) 434-1542.