Dr. Grierson of Goldsmiths University, London, once conducted a study to reveal the 50 most iconic songs of all time, according to science.

Welcome to WatchMojo, and today were counting down our picks for those emotional tunes that strike a chord within our collective hearts. Guns N Roses Never underestimate the strength of a power ballad ...

The 1970s was a tumultuous time, full of upheaval on many fronts, from the end of the Vietnam War to the dawn of personal computers. It makes sense that its music had a similar helter-skelter feel.