

Its both a huge event and platform so it makes sense why artists would want to perform at the superbowl.
As for why he was picked, I think I’ve read some reports that the NFL is really trying to grow the sport in South America. Between the fact that they’ve saturated the US market and that every attempt to expand in Europe has been rough, I think they realize they don’t have many other choices.

Clearly we’re in the minority, but I did not think it sounded good at all. It’s a hard event (even acoustically), and he clearly was singing live, but it felt like he was struggling to keep up with the beat. Although I’m also very hit or miss with rap, so I’m also probably biased.
The message and showmanship was good and regardless of how it sounded, I think people will talk about this performance for a long time.