PLAN AHEAD: NEXT WEEKEND

* The popular Spanish world music group the Gipsy Kings will perform Aug. 17 and 18 at the Greek Theatre, 2700 N. Vermont Ave., L.A. $30 to $110.50. (323) 665-1927.

* Veteran singer-songwriter Eric Clapton performs Aug. 17 and 18 at Staples Center, 1111 S. Figueroa St., downtown L.A. $40 to $85. (213) 742-7340.

* Olivia Newton-John opens the Cerritos Center’s ninth season, performing Aug. 17 and 18 at the Cerritos Center for the Performing Arts, 12700 Center Court Drive, Cerritos. $55 to $65. (562) 916-8500.

* “Corpus Christi,� the Los Angeles premiere of Terrence McNally’s controversial off-Broadway drama, will run Aug. 17 to Oct. 21 at the Lillian Theatre, 6322 Santa Monica Blvd., Hollywood. $27.50. (310) 289-2999.

* The New World Flamenco Festival concludes with two attractions: Yalelisa and Caminos Flamencos on Aug. 14 and 15, Compania Belen Maya on Aug. 17 and 18, both at the Irvine Barclay Theatre, 4242 Campus Drive, Irvine. $24 to $35. (949) 854-4646.

* “Romance & Ritual: Celebrating the Jewish Wedding,� runs Aug. 18 to Jan. 6 at the Skirball Cultural Center, 2701 N. Sepulveda Blvd., L.A. In addition, a World Wedding Festival will be held at the Center on Aug. 19 from 11 a.m. to 4 p.m. $6 to $8. (310) 440-4500