Don't worry, everyone — Weird Al has still got it. The music-parody master is back with a new goofy number, this time with his own rendition of Pharrell Williams's infectious "Happy." He turned it into "Tacky," an ode to, among other things, wearing stripes with plaid and wearing sandals with socks. The video also includes surprising guest cameos from Aisha Tyler, Margaret Cho, Eric Stonestreet, and Jack Black . Check out the whole clip above, and keep an eye on Weird Al, as he announced that he'll be premiering eight new videos over the next eight days . Is "Fancy" next?