Based on Google paid search spending this year, Batman villainess Poison Ivy is the most popular Halloween costume, according to recent research from AdGooroo, a Kantar Media company.

The report was based on an analysis of the US Google desktop search text ad and product listing ad (PLA) spend by retailers between August 1 and October 4, 2016, on 2,959 Halloween costume keywords.

Poison Ivy costumes garnered the largest paid search spend ($158,653) during the timeframe examined.

Pirate costumes received the second largest share of spend; Ninja Turtle costumes were third, followed by general Star Wars costumes.

The least popular Halloween ensembles with paid search advertisers for the keywords examined were werewolf baby costumes and Beyoncé lemonade costumes.

About the research: The report was based on an analysis of the US Google desktop search text ad and product listing ad (PLA) spend made by advertisers between August 1 and October 4, 2016, on 2,959 Halloween costume keywords.