Taylor Swift became the first ever female in the history of the Hot 100 to succeed herself at #1, when "Blank Space" dethroned the songstress' previous single, "Shake It Off" from the top spot.
Amy Winehouse really did refuse "Rehab." She said she drank because she was lovesick, and "you can't go into rehab for that."
Ed Sheeran's "Bloodstream" was written after an experience taking MDMA during a wedding celebration in Ibiza, and it's basically about all the feelings that he got from that time.
"Unchained Melody" first appeared in a 1955 movie called Unchained. The Righteous Brothers recorded it in 1965, and their version was resurrected in the 1990 movie Ghost.
Howard explains his positive songwriting method and how uplifting songs can carry a deeper message.
Test your metal - Priest, Maiden, and Beavis and Butt-head show up in this one.
Richie talks about the impact of "Amazed," and how his 4-year-old son inspired another Lonestar hit.
Tim and his brother Richard are the Furs' foundation; Tim explains how they write and tells the story of "Pretty In Pink."
The lead singer/lyricist for Anberlin breaks down "Impossible" and covers some tracks from their 2012 album Vital.
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.