Happening Saturday

EVENTS

Gem Faire World-renowned jewelry designers, importers and manufacturers come together for one of the largest gem and jewelry shows on the West Coast. Peruse plenty of gems, beads, crystals and minerals or learn to make your own charms at the DIY jewelry classes and demonstrations. OC Fair & Event Center, 88 Fair Drive, Costa Mesa. 10 a.m. to 6 p.m..; (also Sun. 10 a.m.-5 p.m.) $7 for a weekend pass. (503) 252-8300. gemfaire.com

Progressive International Motorcycle Show Check out hundreds of new bikes from leading manufacturers including Aprilia, Beta, BMW, Brammo, BRP, Darwin, Ducati and more at the Progressive International Motorcycle Show. Immerse yourself in bike culture, talk to experts and hop on a bike for a demo ride. Long Beach Convention Center, 300 E. Ocean Blvd., Long Beach. 9:30 a.m.-8 p.m. Sat., 9:30 a.m.-5 p.m. Sun. Adult one-day pass $15, children one-day pass $6. Parking $10. (562) 436-3636.

MOVIES

Santa’s Cool Holiday Film Festival A celebration of holiday cheer and retro kitsch, Santa’s Cool Holiday Film Festival features such time-warped gems as “Santa Claus Conquers the Martians” (1964) and Max Fleischer’s “Rudolph the Red-Nosed Reindeer” (1948), as well as vintage cartoons and trailers. Regent Theatre, 1045 Broxton Ave., L.A. midnight. $10.50. (310) 208-3250. https://www.santamartiansmovie.com

MUSIC

KROQ Almost Acoustic Christmas For many, there’s no better way to get into the holiday spirit than with a face-meltingly good rock show. For that, KROQ-FM’s Almost Acoustic Christmas has got you covered, with a mainstream-leaning Saturday lineup headlined by Blink 182, and featuring Bush, Incubus, Social Distortion and more. Sunday boasts performances by the Black Keys, Death Cab for Cutie and Jane’s Addiction, among others. Gibson Amphitheatre at Universal CityWalk, 100 Universal City Plaza, Universal City. 4 p.m. Sat.-Sun. $79.75-$150. (818) 622-4440. kroq.radio.com