Academia isn't the first word that springs to mind when talking about rock stars.
You're more likely to think of Ozzy Osbourne staggering about his mansion calling `Sharon!' than images of graduation gowns.
But with the release of Nothin' To Lose: The Making Of KISS (1972-1975), by music journalist Ken Sharp, writing with band members Gene Simmons and lead singer Paul Stanley, it's a reminder about some very intelligent musicians out there.
Simmons, who speaks five languages - Turkish, Hungarian, Hebrew, Spanish and English - also holds a Bachelor's Degree in Education.
But he's not the only rock star to earn his stripes on the stage and in the classroom.
Here's five other very brainy rock stars you might not have known about:
The legendary Queen guitarist already had a bachelor's degree in maths and physics from Imperial College, London, and was working towards a PhD when the band's popularity exploded and his studies were put on hold. More than three decades later, he returned to complete his degree and was awarded a PhD in astrophysics in 2008.
Aside from being the lead singer and songwriter of Bad Religion, Graffin also has a PhD in Zoology from Cornell University, where he has also taught, and is a lecturer in life sciences and paleontology at UCLA. His Twitter handle is @DoctorGraffin and the description says, "Anarchy Evolution, Punk Professor and Bad Religion".
The Offspring guitarist and lead singer of the punk-rock band earned a bachelor and masters degree in molecular biology at the University of Southern California, but abandoned his PhD studies to focus on music and hasn't yet returned to the books.
One of the founding members of art-rock group The Velvet Underground, guitarist and sometimes vocalist Sterling dropped out of Syracuse University, New York, but eventually earned a bachelor's degree from City College. He resumed his studies in the early 1970s and was awarded a PhD in medieval literature from the University of Texas.
One half of folk-rock duo Simon & Garfunkel, the singer-songwriters behind hits such as Bridge Over Troubled Water and Mrs Robinson, Art earned a Bachelor of Arts degree at Columbia College, majoring in Art History and later went on to complete his Masters degree in Mathematics at Columbia University.
- Nothin' To Lose: The Making of KISS (1972-1975) by Ken Sharp, with Paul Stanley and Gene Simmons, is published by HarperCollins Australia. RRP: $35.