The first video includes closed captions (= CC); you can activate them by clicking on the red box. Do you know the difference between "caption" and "subtitle"? The former is in the same language, the latter is in a different one. In the case of this video, both of them are available: captions for English and subtitles for Spanish.
So my students´ and Justin Bieber´s geographical knowledge is just as good (or bad?)