When "When I Think of You" hit #1, Janet and Michael Jackson became the first siblings with chart topping solo hits in the United States.
Nelly's "Country Grammar" is a celebration of his hometown of St. Louis, which some folks from the coasts consider "country" because it's in the Midwest.
Jay-Z's "Hard Knock Life (Ghetto Anthem)" is based on the song "It's A Hard Knock Life" from the Broadway play Annie.
Katy Perry's "Dark Horse" was co-written by Sarah Hudson, who is a singer-songwriter and a member of the Pop group Ultraviolet Sound. Though Sarah isn't related to Katy (whose real name is Katy Hudson), she is the first cousin of another famous person with the same name, the actress Kate Hudson.
Bob Marley gave the songwriting credit for "No Woman No Cry" to his friend Vincent Ford, who ran a soup kitchen in Trenchtown, the area of Kingston where Marley grew up.
16-tear-old Lorde wrote the lyrics to "Royals" at home in just half an hour. She was inspired by the "ridiculous, unrelatable, unattainable opulence" that runs through such albums as Kanye West and Jay-Z's Watch the Throne and Lana Del Rey's Born To Die.
Richard explains how Joe Walsh kickstarted his career, and why he chose Hazard, Nebraska for a hit.
Richie talks about the impact of "Amazed," and how his 4-year-old son inspired another Lonestar hit.
Wolfgang Van Halen breaks down the songs on his debut album, Mammoth WVH, and names the definitive Van Halen songs from the Sammy and Dave eras.
Jon Anderson breaks down the Yes classic "Seen All Good People" and talks about his 1000 Hands album, which features Chick Corea, Rick Derringer, Ian Anderson, and many other luminaries.
Gramm co-wrote this gorgeous ballad and delivered an inspired vocal, but the song was the beginning of the end of his time with Foreigner.
Stage urinals, flute devices, and the real Aqualung in this Fact or Fiction.