Just sing the #@$#@$ song. Don't need to hit every note in your range on every syllable.
The girls who sang America the Beautiful before the Super Bowl did that. I had to change the channel it was so obnoxious.
That singing style is indeed annoying. I think Aretha may have started that ball rolling. Whitney Houston made it even more of “a thing” and today Adele, Rhianna, Pink and many others (and EVERYONE on “American Idol”) does it way too much. It’s terribly self-indulgent.