Happening Saturday

EVENTS

Arianna Huffington We can imagine what will be the first question for media mogul Arianna Huffington at this lecture: How will AOL, the new parent company of the Huffington Post, change her sprawling creation launched in 2005? The content-spawning website was bought for $315 million; as part of the deal, Huffington will oversee a new AOL division responsible for bringing together all editorial content from both companies. The social media maven will also discuss a broad vision of uniting traditional and new media forms across the news spectrum — and maybe even her strategies for working Justin Bieber and Charlie Sheen into SEO-baiting headlines. Valley Performing Arts Center, Cal State Northridge, 18111 Nordhoff St., Northridge. (818) 677-8800. 8 p.m. $15-$55.

Riverside County Fair & National Date Festival The festival features live animals, monster truck shows and performances by Third Eye Blind and Kellie Pickler. Admission is free for part of the first day. Riverside County Fairgrounds, 82-503 Highway 111, Indio. 10 a.m.-10 p.m. Today-Feb. 27 (weekends open to midnight.) $8 for adults. (760) 863-8247. https://www.datefest.org.

Long Beach Scottish Festival Many people think of the Queen Mary as a beloved Long Beach landmark and tourist destination, but it is also an enduring example of the craftsmanship of Scottish shipbuilding, being perhaps the most famous ship built on the River Clyde. The annual Long Beach Scottish Festival, now in its 18th year, celebrates that legacy with a weekend of Highland and country dancing, live music, historical reenactments, Scottish food and drink, children’s activities and more. Queen Mary, 1126 Queens Highway, Long Beach. 9 a.m.-6 p.m. Today and Sun. Day pass $22, two-day pass $28. (877) 342-0738. https://www.queenmary.com.

POP MUSIC

Ragga Muffins Festival The 30th annual Ragga Muffins Festival takes over the Long Beach Arena for two days of reggae and roots music, plus crafts and a vendor village. Saturday’s lineup includes Bunny Wailer, Rebelution, Gyptian and Half Pint. Sunday features Israel Vibration, Gentleman, I-Octane plus many more. Long Beach Arena. 300 E. Ocean Blvd. 2:30 p.m. Today.-Sun. $47. https://www.raggamuffinsfestival.com.