Taylor Swift became the first woman in the history of the Hot 100 to succeed herself at #1 when "Blank Space" dethroned her previous single, "Shake It Off," from the top spot in 2014.
Robert Smith doesn't license Cure songs for commercials, but he made an exception in 2004 when he let Hewlett-Packard use "Pictures Of You." He needed the money to buy the group's back catalogue.
Billy Joel wrote "We Didn't Start The Fire" after a 21-year-old told him, "everyone knows that nothing happened in the '50s."
"Heart of Glass" was Blondie's first foray into disco, which turned off some fans. Debbie Harry said they did it because they "wanted to be uncool."
Mariah Carey's "We Belong Together" was the best-selling song of the 2000s in the US.
k.d. lang is a credited writer on the Rolling Stones song "Anybody Seen My Baby?" because it sounds so much like her hit "Constant Craving."
Not everyone can be a superhero, but that hasn't stopped generations of musicians from trying to be Superman.
Songs about drugs, revolution and greed that have been used in commercials for sneakers, jeans, fast food, cruises and cars.
Some songs get a second life when they find a new audience through a movie, commercial, TV show, or even the Internet.
Rise Against frontman Tim McIlrath explains the meanings behind some of their biggest songs and names the sci-fi books that have influenced him.
Find out how God and glam metal go together from the Stryper frontman.
A top country songwriter, Barry talks about writing hits for Little Big Town, Tim McGraw and Jason Aldean.