As the Superbowl LII approaches, everyone is getting very excited about the Justin Timberlake's halftime performance, and the possibility of an *N'SYNC reunion. It was also announced that pop star Pink has been tapped to sing the national anthem at the event. While the national anthem doesn't garner as much hype as the halftime show, it does set the tone for the entire event, so there's a lot of pressure on the singer. Over the last few decades, there have been some incredible renditions of the patriotic song. So let's take a trip down memory lane and revisit some of