Question: The video with the most dislikes on youtube?

Disambiguated questions and answers:
context: In March 2011, "Baby", which then had 1.17 million dislikes, was surpassed by the video for Rebecca Black's "Friday", yielding more than 1.2 million dislikes. "Friday" amassed more than three million dislikes before the video was taken down in June 2011. The video was reinstated three months later and has not been taken down since.
question: What was the video with the most dislikes on YouTube on June 16, 2011?
short_answers: "Baby"
wikipage: List of most-disliked YouTube videos

context: In March 2011, "Baby", which then had 1.17 million dislikes, was surpassed by the video for Rebecca Black's "Friday", yielding more than 1.2 million dislikes. "Friday" amassed more than three million dislikes before the video was taken down in June 2011. The video was reinstated three months later and has not been taken down since.
question: What was the video with the most dislikes on YouTube on March 29, 2011?
short_answers: "Friday"
wikipage: List of most-disliked YouTube videos

context: No context provided
question: What was the video with the most dislikes on YouTube on approximately August 21, 2010?
short_answers: "Baby"

Long answers:
knowledge: content: On December 13, 2018, YouTube Rewind 2018: Everyone Controls Rewind became the most disliked video on the video sharing platform, with 15 million dislikes rapidly surpassed the music video for Justin Bieber's song Baby,[1] which entered the Guinness World Records book as the most disliked video on YouTube and on the Internet.[5] As of July 9, 2021, YouTube Rewind 2018 has over 7.1 million more dislikes than Justin Bieber's Baby.
wikipage: List of most-disliked YouTube videos
long_answer: In March 2011, the video for Justin Bieber's music video, "Baby" had the most dislikes until it was surpassed by the music video for Rebecca Black's song "Friday." Her song received more than 3 million dislikes and was removed from the YouTube platform in June 2011. Three months later, the video was re-uploaded and as not been removed since. As of December 13, 2018, the YouTube Rewind 2018: Everyone Controls Rewind video became the most disliked video on the platform, with 15 million dislikes rapidly surpassed the music video for Justin Bieber's song Baby.

knowledge: content: "Baby"*[22]	Justin Bieber	~200,000	February 19, 2010	~August 21, 2010	~220	[78][79][80][81]
wikipage: List of most-disliked YouTube videos

content: 4	"Baby"[22]	Justin Bieber featuring Ludacris	[4]	12.29	39.88%	Feb 19, 2010	Music video
wikipage: List of most-disliked YouTube videos

content: "Friday"‡[7]	trizzy66	1,200,000	February 10, 2011	March 29, 2011	79
wikipage: List of most-disliked YouTube videos

content: Friday" is a song performed by American singer Rebecca Black, written and produced by Los Angeles record producers Clarence Jey and Patrice Wilson. It is Black's debut single. 
wikipage: Friday (Rebecca Black song) Music video
long_answer: On August 21, 2010 the video of Justin Bieber's song "Baby" had the most dislikes on YouTube. On March 29, 2011 the video of Rebecca Black's song "Friday" had the most dislikes on YouTube. On June 16, 2011 Justin Bieber's song "Baby" featuring Ludacris had the most dislikes on YouTube.