show -- the only reason Beyonce and Bruno Mars were there was because Chris Martin invited them, and actually had to convince Bruno Mars to do it.
That's not really either here or there, except that it wasn't the NFL's idea and I think a big part of that is the fact that these are very successful people and they don't really want to share -- or if they are going to share, they'd like to be the author of it. J-Lo, I think, has been public about the fact that she wasn't delighted to be asked to co-headline with Shakira and she isn't nearly as big as someone like Bad Bunny or Taylor Swift. Not as a music act, at least.
I do think people tend to like the shows that are curated by the headliner as multi-artist platforms the best. Dr. Dre's show a few years ago was pretty well received.
