Until December 5, 1998, a song had to be issued as a single to make the Hot 100. Aaliyah's "Try Again" was the first tune to top the chart based on airplay alone, without any sales figures being included.
"Feel It Still" by Portugal. The Man deals with lead singer John Gourley becoming a "rebel just for kicks" after having a daughter and settling down. "It's hard to be a punk when you're thinking about your baby daughter at home," he says.
"Call Me Maybe" by Carly Rae Jepsen was the song of the summer in 2012 and a major meme. It got some help from her fellow Canadian Justin Bieber, who tweeted that it was "possibly the catchiest song I've ever heard."