Happening Monday

MUSIC

Jazz Reggae Festival New York rapper Nas and reggae artist Damian “Jr. Gong” Marley (the youngest son of Bob Marley), who recently collaborated on the album “Distant Relatives,” headline this student-run celebration of music and culture. Additional performers include Barrington Levy, Cham and Etana. UCLA Intramural Field, 405 Hilgard Ave., L.A. 11 a.m. to 7 p.m. $35. (310) 825-9912. https://www.jazzreggaefest.com.

MUSIC

Miike Snow The Swedish trio brings its sneakily addictive synth pop to the second show of a sold-out, three-night run in Los Angeles. The two producers of the band, Pontus Winnberg and Christian Karlsson, had a hand in the best Britney Spears song to date, “Toxic” — maybe they’ll wedge a lick or two from that epic jam into their set. The Music Box at Henry Fonda, 6126 Hollywood Blvd. 8 p.m. $23.50. (323) 464-0808.

EVENTS

Valley Greek Festival Enjoy live music, folk dancing, authentic food, homemade pastries, children’s activities, a Greek market and more at the final day of this cultural event. Vendors will be selling regional music, clothes, jewelry and pottery. St. Nicholas Greek Orthodox Church, 9501 Balboa Blvd., Northridge. 1-9 p.m. (818) 886-4040. https://www.valleygreekfestival.comhttps://www.valleygreekfestival.com.

Memorial Day at the Aquarium Sure, you can have a picnic on your front lawn — or you can spread out the checkered cloth on the magnificent front lawn of the Aquarium of the Pacific. The menu will include potato salad with roasted poblanos, honey BBQ chicken, baked beans, corn bread and plenty of other fixin’s. After loading up, you and the family can wander through the exhibits. Aquarium of the Pacific, 100 Aquarium Way, Long Beach. $17-$34. 11:30 a.m.-1:30 p.m. (562) 590-3100.