Some things always keep changing, like how YouTube has been doing for some time now. YouTube has recently (some months back actually) redesigned it’s interface and we are getting used to it.
Have you noticed the small football icon while watching some of the YouTube videos off-late? Just go ahead and click on it, surprise !! who’s blowing the “Vuvuzela” there ?
The annoying Vuvuzela sound toggles on and off if you click this football icon. Although this button can’t been found on all videos, it’s indeed showing up on some non-soccer videos on the YouTube.