Here's why:
* Different award shows have different categories. Some might have a "Song of the Year" award, others might have a "Best Original Song" award for film or television.
* Award shows have different eligibility criteria. Some might consider songs released in a calendar year, while others might consider songs released within a specific award season.
* There is no central database of all award nominations. You'd have to search through the individual websites of each award show to find the nominees.
To help you find the information you're looking for, please tell me:
* Which award show are you interested in? (e.g., Grammy Awards, MTV Video Music Awards, American Music Awards)
* What type of "best song" category are you looking for? (e.g., Song of the Year, Best Original Song, etc.)
Once I have that information, I can help you find the nominees.