Yes, it’s finally time to count down the five most popular YouTube videos of 2012, and #1 is no other than PSY’s Gagnam Style, which has exceeded 1-billion views as of today. Others include: Somebody I Used to Know Walk Off the Earth cover, KONY 2012, and more. Continue reading to see them all.

5. Barack Obama vs. Mitt Romney Epic Rap Battles (48-Million Views)

Epic Rap Battles of History (often shortened to ERB or ERBoH) is a YouTube video series created by Peter Shukoff (aka Nice Peter) and Lloyd Ahlquist (aka EpicLLOYD). The series pits famous historical and pop culture figures, either fictional or otherwise, against one another in a rap battle format.

4. Call Me Maybe (56-Million Views)

“Call Me Maybe” is a song recorded by Canadian singer-songwriter Carly Rae Jepsen for her EP Curiosity (2012) and appearing on her international debut album, Kiss. The song was written by Jepsen and Tavish Crowe as a folk song, but its genre was modified to pop following the production by Josh Ramsay.

3. KONY 2012 (95-Million Views)

The film’s purpose is to promote the charity’s “Stop Kony” movement to make Ugandan cult and militia leader, indicted war criminal and International Criminal Court fugitive Joseph Kony globally known in order to have him arrested by the end of 2012, the time when the campaign expires.

2. Somebody That I Used to Know – Walk off the Earth (142-Million Views)

Walk off the Earth is a Canadian indie band that formed in 2006 in Burlington, Ontario, and has gained success around the world by making low-budget music videos of covers and originals. The band built its fan base independently with no help from record labels, booking agents, or management.

1. Gagnam Style (1-Billion Views)

In the Siberian region of Kemerovo, residents dressed themselves in costumes designed to look like the ape-like creature Bigfoot and danced “Gangnam Style” to celebrate and mark the birthday of Bigfoot. The state-funded television channel Russia Today labelled the celebrations “Yeti-style”, a reference to another ape-like creature similar to Bigfoot.

[Sources 1 | 2]