Glenn Frey

After the Eagles hit it big in the '70s, Frey lived life in the fast lane, but he took up a fitness habit in the late '80s and got himself in serious shape. He became a pitchman for Jack LaLanne fitness centers and appeared in a print ad showing before and after photos, with the before labeled "Hard Rock" and the after "Rock Hard."

He got into the music business to get girls and make money. Once those goals were met, he turned to more virtuous pursuits. "That's what it was for everybody," he said about his initial motives. "Then you become a serious artist and set out to change the world."

A formative event for Frey was attending a Beatles concert in the mid-'60s (his aunt brought him to the show). This made him want to become a musician.