Flashbacks you say...looks like there is a minor time warp adjustment required, though Vietnam and the 1970's was closely linked to the 1960's due to the Vietnam conflict.

Simon & Garfunkel Sounds of Silence: 1964 Lodi (Creedence Clearwater Revival song): 1969 Canned Heat Going up the country: 1968 Edwin Starr War: 1969 though I've seen it referenced as 1970.

All right, let's split the atom, or is it spit at them. Either way, safety gear recommended. Take a song from the 60's and time warp with a movie from the 70's and what a combo.

https://www.youtube.com/watch?v=GEgG6PvMuzI

And if that isn't intense enough for you there is always this classic.

https://www.youtube.com/watch?v=LQUXuQ6Zd9w

Now with a surrealistic twist.

https://www.youtube.com/watch?v=yrXMY-9xMYE&list=RDyrXMY-9xMYE&start_radio=1

Wrapping up with a flush forward.

https://www.youtube.com/watch?v=0QpjR6-Uuks