Batman vs Sherlock Holmes is the twenty-sixth installment of Epic Rap Battles of History and the eleventh episode of Season 2. It features the crime-fighting superhero from the DC comic series of the same name, Batman, rapping against one of the greatest fictional detectives of all time, Sherlock Holmes. It also features Sherlock's companion and friend, Dr. Watson, and Batman's side-kick and Boy Wonder, Robin. It was released on November 27th, 2012.
The line in question is, "Holy Conan Doyle, let's get 'em! Aw, god damn!" The line portion, "Aw, god damn!", is the only part of this line where nothing on the screen dictated the lyrics.
On August 22, 2016, "...the curious incident of the bat in the night-time..." was written in the description of the video. This is a reference to the 2003 mystery novel written by British writer Mark Haddon, The Curious Incident of the Dog in the Night-Time.
Robin's costume had the ERB logo on it.
This is the first battle to have someone other than the title character in their card, as Dr. Watson was in Sherlock Holmes' title card.
There were many references to the 1966 Batman television show:
The first was Robin climbing down the building with rope, which is similar to the Batman rope climb in the show with the building on the left.
The second was the "POW!", "BAM!", and "KERSPLAT!" animations and sound effects made when Batman and/or Robin punch or kick a criminal.
Finally, the outro was a reference to the Batman spinning logo often used to change a scene in the show.
When Robin raps, EpicLLOYD's tattoo on his left arm can sometimes be seen.
During the "Who won? Who's next? You decide" sequence, Dr. Watson walked in front of a pole that was supposed to be in front of him.
Because Robin's climbing sequence is filmed sideways, his cape floats towards the wall of the building instead of hanging downwards.