let's talk about the world's most expensive hot dog. it's being served by a food truck in seattle. it's called tokyo dog. >> this is no ballpark frank here. it's a foot long smoked cheese bratwurst, that's right, with butter, teriyaki grilled onions, and mushrooms. there's also wagu beef, foie gras, and a buttery bun -- >> the price tag, $169. >> bargain. >> 1-6-9. how about a hot dog for $1.69? relish, mustard, ketchup. >> i'm old school when it comes to that. [ belch ] >> thanks, guys. coming up, from a hot dog to the most spoiled dog. a pet showered with indulgences. later in "the mix." indulging yourself and help from our favorite gourmet. you're watching "world news