Spotify’s video ads are coming. The music-streaming service will soon roll out its video ad products for marketers, including a mobile product that lets listeners watch a video ad in exchange for a half hour without any further commercial interruption. Spotify will start testing the video ads in the fourth quarter with a limited number of brands and plans to extend them to all advertisers in the first quarter of 2015. Coca-Cola, Ford, McDonald’s and Universal Pictures have signed on as the ads’ first global buyers. Kraft Foods, Target and Wells Fargo will be the U.S.-only launch advertisers.