I was going to mention ADDICT, but I hesitated because it's debatable if that's something Viv had planned and use the song as an opportunity to tease it... or she made up Cherri's portion exclusively for the video. The guy in the video is based off a Zoophobia character named Izzi.
But keep in mind, SilvaHound's intentions with Chi-Chi is that she's singing as Angel Dust.
Yeah, you fell in love
But, you fell deeper in this pit (Angel and Val)
You're not lettin' it go
So, what if I misbehave?
It's what everybody craves (Angel vs. The Hotel)
Your money and power
My sinful delight (Val's Overlord privileges)
This hotel is my Atlantis
(This one's a no brainier, Cherri isn't a guest yet)
Obviously, they weren't going to have Angel lip sync a woman's voice, so rather than making an OC or just have Chi-Chi's lyrics play in the background, they used Cherri to lip sync since she was a perfect fit due to her only meaningful character trait at the time was being Angel's BFF who shared his attributes.
I did bring up how there weren't any Cherri focused stories in the proposed episodes during my previous comment, which to be fair, there are episodes and comics that were missing such as Episode 1
(Though if you look very closely on the top right, the image does resemble the scene in the pilot, which BTW is called That's Entertainment, where Alastor introduces himself with his "Stock Market Crash of 1929" line)
Issues #1,5,6 and 7 were missing too. Given how there were at least 10 comics, I presume that there would be at least 10 episodes, so chalk that as you will. At the same time, however, even if Cherri was the focus in one of those missing episodes/issues, I doubt it'll outnumber the amount of HuskerDust content we were supposedly going to get. Issue #8 was about Husk acting MVP in rescuing Angel, Episode 5 was beta Masquerade, and judging by the image, Angel is the only person to accompany Charlie when she takes Husk to the carnival in Episode 4.
Looking at her audition sheet, there's components for a potential foil to Angel Dust, but going off Season 1's ending and the Season 2 leaks, she's just part of the gang now the way Sir Pentious was before ascending. The bit about her causing trouble for Overlords is interesting, although again she's part of the Hotel, and from their perspective: Carmilla's an ally, Zestial is close to Carmilla, so no beef from him, Rosie's an ally, Alastor's an on and off ally, the Vees are a packaged deal enemy wise. That leaves Miss Zilla/Zeezi and that flaming skull Overlord with antlers.
The end of her audition sheet mentions that she's overcoming her past, it's just with how vague that sounds, who knows when that'll get touched upon. As upset Michael got when people said he can't sing when POISON was released, at least that provided a reasonable explanation on why he had to get replaced. Are you saying Krystal has to wait 4+ years to truly understand why she had to get replaced by a Broadway actress, and until the day comes, she's going to let Krystina pride herself as Cherri Bomb for her astonishing performance during the scenes of... being Sir Pentious's girlfriend?