While sitting in the car last night waiting for my daughter and listening to the radio, I was playing with Shazam on my Apple Watch. Didn't realize it will give you scrolling highlighted lyrics. Definitely a cool app for the watch as it makes you look like a boss singing along and no one will know you are getting the lyrics from your watch. The only bad thing was if you don't scroll or something every few seconds, then the screen eventually goes dark. I just moved the crown a little to keep it alive. I'd think that this app would be able to keep the screen awake if its actively scrolling lyrics.