It may be Saturday, but “Weird Al” Yankovic doesn’t take weekends off. Well, he might usually, but right now he’s in the middle of releasing a bunch of videos for his new album, Mandatory Fun. It’s Day Six of his “Eight Videos In Eight Days” plan, which means we’re officially in the homestretch. “Weird Al” is celebrating the occasion by complaining about forgetting his gardener’s name and buying things he doesn’t need off Amazon so he can qualify for free shipping. In other words, it’s time for “First World Problems,” Yankovic’s stylistic tribute to the music of The Pixies.