“See Dem Aliens” is a song based on the “Area 51 storm” meme that blew up in 2019. The song is about how to storm Area 51, with famous memes such as naruto runners, gamers, and kyles.

As stated from Wikipedia

Area 51 is the common name of a highly classified United States Air Force (USAF) facility within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base, the facility is officially called Homey Airport (XTA/KXTA) or Groom Lake (after the salt flat next to its airfield). Details of its operations are not made public, but the USAF says that it is an open training range, and it is commonly thought to support the development and testing of experimental aircraft and weapons systems. The USAF acquired the site in 1955, primarily for flight testing the Lockheed U-2 aircraft.