Epic Rap Battles of History (ERB) is a YouTube web series and music project created by Peter "Nice Peter" Shukoff and Lloyd "EpicLLOYD" Ahlquist. The series pits historical and pop culture figures against one another in a rap battle format. The characters portrayed are often determined by suggestions from viewers in the comments sections of the channel's videos. Shukoff and Ahlquist write each song themselves, researching the subject in order to find obscure details to use as references in the lyrics, although certain Patreon subscribers have also contributed to the writing process. Following an extended hiatus, the channel returned with a bonus battle in December 2018, and the sixth season debuted on April 20, 2019. As of February 23, 2023, the channel has 14.9 million subscribers and approximately 4 billion total video views.

Peter Alexis Shukoff, best known as his stage name Nice Peter or Bluesocks, is an American musician, rapper and Internet personality. A self-described "Comic/Guitar Hero", he is best known for the comedy on his YouTube channel, Nice Peter, and especially for the comedic series Epic Rap Battles of History which he co-created with Lloyd "EpicLLOYD" Ahlquist. As of June 8, 2016, NicePeter has over 2.6 million YouTube subscribers. The day after hitting one million subscribers, the video game channel G4 crowned Nice Peter the King of Dot Comedy on Attack of the Show. His two channels, Nice Peter and ERB, have a total of over 17 million subscribers and 4 billion views as of February 2019. He also has a third channel that he uses for vlogs and "Monday Shows", a show that he uploads on either Mondays or Tuesdays consisting of different segments including "Viewer Mail", "Twitter Question Time", and "Ask a Giraffe". They have been featured on the Huffington Post, Billboard.com, Forbes and the January 2012 issue of Wired.