Teleprompting for musicians is common place in the big leagues today. Yes, lyric teleprompters are a must for the biggest of bands. Pink Floyd, Paul McCartney, John Mayer, Tom Petty, Barbra Streisand, Miley Cyrus, Elton John... and on and on goes the list of professionals who utilze.
Especially bands with vast catalogs of songs. It's easy to forget the lyrics in the middle of a show. The guitar solo went three times longer because the mood called for it and then... wait, did we sing the third verse yet? Or are we on the last verse?
Maybe it's a brand new song that the artist doesn't quite have memorized. Or, it can be a lyric that they have sung so many thousands of times that, once they go blank, they have no way to recollect where they are.
All it takes is that one moment to throw the singer off balance for the rest of the night. The audience knows every word and they know when the singer messed up. It wouldn't be the first time someone flubbed up the Star Spangled Banner.
Lyric teleprompters are an invaluable asset to have for live performances. Not only do the teleprompter techs have the ability to load lyrics within minutes before a show, but they can add chord progressions as well, giving every band member a safety net that allows them the peace of mind to play without the dread of "what comes next?!?!?"