18."Respect" by Aretha Franklin is actually a cover of an Otis Redding song. Franklin rewrote the lyrics because the song originally had a misogynistic tone and now it's one of the most famous female anthems of all time.
19.Carlos Santana was so high on LSD during his performance at the Woodstock Festival in 1969, he thought his guitar neck was a snake.
20.Demi Lovato and Selena Gomez used to be on Barney & Friends together before they became iconic pop singers.
21.Tina Turner was actually the one who taught Mick Jagger how to dance when she toured with the Rolling Stones back in the '60s.
22.Jimi Hendrix taught himself how to play the guitar and never learned how to read music.
27.And Bruce Springsteen invited an unknown Courteney Cox to dance onstage with him in his "Dancing in the Dark" music video in 1984.
28.Mel B and Geri Halliwell (Scary Spice and Ginger Spice) used to hook up during their days in the Spice Girls.
29.Harry Styles gave Stevie Nicks a carrot cake when they met for the first time backstage at a Fleetwood Mac show.
30.After Barbra Streisand appeared on The Judy Garland Show in 1963, Garland would visit Streisand's apartment in New York City to give her career advice, saying things like: "Don't let them do to you what they did to me."