"Hello" by Adele
Chart peak: No. 1 on Billboard's Hot 100 for 10 weeks.
Our take: Hello, it's Adele. Do power ballads get any bigger than Adele singing about regrets and apologies?
"Formation" by Beyoncé
Chart peak: No. 10.
Our take: Performed at the Super Bowl halftime, this song is a fiery embrace of one's blackness.
"7 Years" by Lukas Graham
Chart peak: No. 2.