Since then, local police have announced they are investigating the matter, as well as public health officials.
In her second video, Grande admits she "kind of missed" her opportunity to sincerely apologise the first time around because she was "too busy preaching about my issues with the food industry".
The singer continues in the rambling post saying she's "never been prouder to be American".
"I feel like seeing the video of yourself behaving poorly that you have no idea was taken is such a rude awakening that it's like you don't know what to do," she said.
"I was so disgusted with myself... I like shoved myself in a pillow and wanted to disappear...
"I apologise for my poor choice of words and for my behaviour. Seeing how ugly it looks when you behave a certain way makes you want to never behave that way again."
Read more:
• Ariana Grande's biggest diva moments
Grande has vowed to learn from her behvaiour and said she never wants to be anything but a positive influence on her fans, who she calls her "babes".
Whether a four-minute video is enough to get the police off her back remains to be seen, but Grande appears to have kept her millions of fans happy, with #WeForgiveYouAriana one of the top Twitter trends not long after the apology was issued.
- AAP