Of course you would have to get three big wads of gum stuck in your hair on picture day! Argh! Let's clear up some confusion as to where Lynette was this past weekend, too...
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app