Why is the Rebecca Black song Friday worst ever?

The Rebecca Black song "Friday" has received much criticism and ridicule, but referring to it as the "worst song ever" is subjective. Many critics and listeners consider it to be poorly written, lacking in musical quality, and containing repetitive and simple lyrics. However, it is important to recognize that individual preferences in music can vary widely, and some people may genuinely enjoy the song or find it catchy. Different individuals have different tastes and interpretations of music, so labelling it as the "worst song ever" is not a universal opinion.