The video also dips into 1980s pop culture as one of the revellers dances in black sunglasses and a white shirt like Tom Cruise in Risky Business.
Following up on the chorus from Friday, where Black croons that "Everybody's looking forward to the weekend," her new song features the lyrics, "I don't want this Saturday to end."
The song is a less nasal offering in comparison to Friday, and also sees the 16-year-old perform a brief rap.
On Black Friday, the teen posted a reaction video to her original song in which she cringes and bops along to the chorus.
The 2011 song is beaten only by Justin Beiber's Baby as the most disliked video on YouTube, with 1,220,000 users clicking 'dislike'. Miley Cyrus' We Can't Stop comes in third.
The bullying the teenagers suffered for her first song in 2011 meant she decided to be home-schooled.
At the time, she said: "When I walk by they'll start singing Friday in a really nasally voice. Or, you know, they'll be like, 'Oh hey, Rebecca, guess what day it is?'"
Her mother said that the family hired a bodyguard to protect her daughter.
Rebecca found fame after her parents paid $4000 for a production company to film a pop video for the then 13-year-old.
Internet users can only guess at if or when "Sunday" will be released.
Watch the video here:
- Independent
