I just like everything this guy does *promote and a related video https://videosift.com/video/Quarantine-Hide-and-seek-Imogen-Heap-A-Capella-Science

Self promoting this video and sending it back into the queue for one more try; last queued Monday, January 18th, 2021 8:45am PST - promote requested by original submitter eric3579.

Quarantine (Hide and seek- Imogen Heap) | A Capella Science has been added as a related post - related requested by eric3579.

Your video, A Capella THX Logo Theme, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

This achievement has earned you your "Pop Star" Level 17 Badge!

Double-Promoting this video and sending it back into the queue for one more try; last queued Thursday, November 16th, 2017 9:50pm PST - doublepromote requested by oritteropo.

Evo-Devo (Despacito Biology Parody) | A Capella Science has been added as a related post - related requested by oritteropo.

*related=https://videosift.com/video/Evo-Devo-Despacito-Biology-Parody-A-Capella-Science (about the atoms, molecules, and cells making up creatures or people)
*doublepromote

You should check out his other songs. Most i'm guessing you will know. They are all amazingly well done. I'm surprised more people don't love his stuff. Here are my faves.
*related https://videosift.com/video/CRISPR-Cas9-Mr-Sandman-Parody-A-Capella-Science
*related https://videosift.com/video/A-Capella-Science-Bohemian-Gravity
*related https://videosift.com/video/Gravitational-Waves-Jam
*related https://videosift.com/video/PLUTO-MARS-Outbound-Probe-A-Capella-Science

CRISPR-Cas9 ("Mr. Sandman" Parody) | A Capella Science has been added as a related post - related requested by eric3579.

A Capella Science - Bohemian Gravity! has been added as a related post - related requested by eric3579.

Gravitational Waves Jam has been added as a related post - related requested by eric3579.

PLUTO MARS - Outbound Probe (A Capella Science) has been added as a related post - related requested by eric3579.

Gravitational Waves Jam has been added as a related post - related requested by eric3579.

PLUTO MARS - Outbound Probe (A Capella Science) has been added as a related post - related requested by eric3579.

A Capella Science - Puffed Up Cores has been added as a related post - related requested by eric3579.

A Capella Science - Bohemian Gravity! has been added as a related post - related requested by eric3579.

A Capella Science - Rolling in the Higgs has been added as a related post - related requested by eric3579.

SAIL has been added as a related post - related requested by eric3579.

AWOLNATION - SAIL (Live) has been added as a related post - related requested by eric3579.

Acquire A Capella: Sail (Awolnation Cover) has been added as a related post - related requested by eric3579.

This video has been seconded as a duplicate; transferring votes to the original video and killing this dupe - dupeof seconded with isdupe by eric3579.

*dupeof=http://videosift.com/video/a-capella-tribute-to-John-Williams

This video has been nominated as a duplicate of this video by ant. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.

Your video, A Capella Science - Bohemian Gravity!, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Is Over-Engineered music still called A Capella?
And is it still A Capella when you ad musical instruments to it?

A Capella groups always have expressions on their faces like they know something we don't...