Overview: Certain songs have come to define the times in which they appeared as they proved to be the catalyst for the transformation of the cultural and political landscape. Each program in the Impact! series puts the spotlight on the songs that have left an indelible mark on the world.

DVD Verdict: 'Like a Virgin' / Madonna - For this "Like A Virgin" volume, the focus is limited to just that one recording by Madonna and how it "shocked" a nation. In addition to the song's co-writer (Billy Steinberg), the producer (Nile Rodgers -of Chic) and the Director of the now-famous video we hear from a few of her biographers, some Madonna "wannabees" and clothing designer Betsey Johnson. Jeanne Baker of the Fashion Channel shows up here too (as well as on the Elvis Presley ("Heartbreak Hotel") volume, talking about Madonna's impact on style. And "Weird Al" Yankovic - who parodied the single as "Like A Surgeon" explains why the song was so important to parody.

'Walk This Way' / Run DMC, Aerosmith - Unlike most of the others in the series, this volume on "Walk This Way", the 1986 collaboration between the Hip-hop group Run-DMC and the heavy metal band Arrowsmith, has little participation by those involved in the record. The Director of the video - which is the #2 most played music video of all time - is here. But we get 5-6 words from the two guys from Arrowsmith. Jam Master Jat from Run-DMC was murdered in 2002 so obviously wasn't available for an interview but no archival interview clips of Jay or new ones by his two partners are included. Instead we get the members of Living Colour. There's a large section on market the hip-hop culture to young kids, black and white. And Grandmaster Flash gets lots of time to talk.

'Smells Like Teen Spirit' / Nirvana - When Kurt Cobain (lead singer and orchestrator supreme of supa group Nirvana) committed suicide in April of 1994, it was a mighty shock to all concerned. Nirvana's music combined a punk sensibility with hard rock to create a unique sound that would begin the wave known as "grunge" throughout the world. Guests included on this DVD are recording artists, music industry executives, cultural and politcal pundits and the music fans themselves for whom this song 'Smells Like Teen Spirit' (factually inspired by the name of a commercially available teenage girls' deodorant) became their life's soundtrack. These are all Full Screen Presentations (1.33:1) enhanced for 16x9 TVs, but do not come any Special Features.