9:50 AM PT -- Sources close to Colleen tell us the internet got it all wrong. Colleen had actually performed a song from "Wicked" earlier in the show, and wore green face paint for the Wicked Witch of the West ... she never had a chance to wipe that paint off her face before "Single Ladies."
Colleen Ballinger's fall from grace is taking her to a new low -- she's getting raked over the coals for an old video of her in blackface, while singing a Beyoncéhit.
The YouTuber/comedian -- famous for her viral character Miranda Sings -- is again in the crosshairs of critics who dug up the problematic clip from her past ... a video showing Colleen with dark makeup on her mug as she sings along to "Single Ladies."
Unclear exactly what year this went down, but based on the Miranda Sings YouTube page, it seems to be sometime in 2017 or 2018 ... and while it's an unlisted post, it is still up. Some of the comments claim the blackface video was offered as an exclusive sneak peek to folks who bought Colleen's book, "My Diarrhe."
The resurfacing of the video comes at a very interesting time, because Colleen was recently accused of racism in another context -- resurfaced texts allegedly sent pertaining to her 2016 Netflix show, "Haters Back Off."
The texts, attributed to someone working with Colleen at the time, were about auditions they were conducting for the show, and the sender claimed Colleen made a crack about a Black actor ... allegedly saying, "WHERE IS HE" -- referring to the guy being very dark in bad lighting.
Of course, this latest backlash is on top of recent grooming allegations ... with people accusing her of reaching out to young fans in inappropriate ways.
Colleen responded to those claims in a bizarre apology video ... which had her singing/explaining away the behavior. It was deemed as tone-deaf, and didn't help.
Obviously, a blackface video -- mocking Beyoncé, no less -- won't do her any favors either ... remember, she's already had sponsors dropping her left and right.