Petula talks about her hits "Downtown" and "Don't Sleep In The Subway," and explains her Michael Jackson connection.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.
At 80 years old, Yoko has 10 #1 Dance hits. She discusses some of her songs and explains what inspired John Lennon's return to music in 1980.
For songwriters, Johnny represents the American man. He has been angry, cool, magic, a rebel and, of course, marching home.
The leader of the Modern A Cappella movement talks about the genre.
Long before she was judging contestants on American Idol, Oliver was producing Paula Abdul. Here's how he helped turn this unknown choreographer into a star.