It is one of the greatest rock and roll songs of all time, but was the intro to Led Zeppelin's "Stairway to Heaven" stolen from the 1960's band Spirit?

According to an attorney for Spirit's former lead guitarist Randy California, the Zeppelin classic sounds strikingly similar to Spirit's song "Taurus."

Taurus was released in 1968, three-years before "Stairway to Heaven." But why is the band coming forward now, more than 40 years later?

In an interview with CNN's Brianna Keilar, Francis Malofiy, who is representing the late Randy California from the band Spirit discusses why the band is making the claim now.