Yes, they are singing different lyrics. However, I think that it's really good lyrics or not.

Also, I'm officially going to call this a Mashup-Bashup, because it's a mashup of two different covers of the same song, but it's a bashup at the same time because of the key difference.

Note Difference: 3 (half-step-wise)
YouTubers: Juby Phonic and Lizz

Both YouTubers are VERY awesome and you should check them out.

Juby Phonic Vs Lizz In Hide And Seek

Static in My Veins

FNaF 1 - 3 - Not Here All Night [Deeper Voice]

【Undertale】We're The Underground

【Flowerfell】 Secret Garden

Build Up Our Machine-Jordan Sweeto (Cover) Lyrics (320  kbps) (imp3juices.com).mp3

EDIT; Song is now live on Youtube! https://www.youtube.com/watch?v=WCom1Xg2Y-0

A little preview of a song that should be out soon! Just tightening up some loose ends and making sure it's all good to go!

Welcome To Hazbin Hotel Demo

LITTLE NIGHTMARES SONG Part 1

Team Full of Harmony A Pokemon Go Musical.mp3

Hazbin Hotel - Addict (Deeper Version)

Silva Hound ft. Michael Kovach and Chi-Chi_[Addict]

Hazbin Hotel - Addict (Deeper Version)

Flaps the Vulture