Invaders From Verdelha

Back in the 80's, Ronald Reagan warned the world leaders about an "alien threat" in the United Nations General Assembly. Reagan knew that, since the alien autopsy in the Area 51, the threat of war between aliens and humans was real.
Despite that, human acts of provocation continued, mainly by the hands of Steven Spielberg. First in "E.T.", where Spielberg pictured an alien with a distressing lack of affect and messing around with little children. Again, Reagan warned Spielberg, but he couldn't care less and made "War of Worlds" with the Scientologist Tom Cruise.
But what triggered the alien attacks was the transmission to space by NASA of Beatles song "Across the universe" when everybody knows that “A Hard Days Night” is so much better.
When the song reached the distant galaxy of Verdelha, the Invaders immediately headed Earth but an warp engine malfunction caused a breach in the space-time continuum and the Invaders landed in the 60's where they armed themselves with Garage and Blues Tachyon Cannons and other weapons of mass destruction.
The Secret Intelligence Services advice is to RUN FOR YOUR FREAKIN'LIVES!!!