This absurdly catchy pop song owes much of its viral success online to a lip dub music video featuring Justin Bieber, Selena Gomez and Ashley Tidsdale.

Vanity Fair: Around the same time Hot or Not and other vanity-driven websites were taking off, there was a similar "beauty rating" subculture emerging on the Korean web known as Ulzzang, which literally means the "best face." Wat.

Similar to One Letter Off Movie Posters, these two panel images change a character or celebrity's name to a pun before photoshopping the image accordingly.

This is how cat logic works.

Reflecting the nostalgic appeal of the 90s TV sitcom Friends on Tumblr, Chandler Bing's famously awkward dance has been immortalized in GIF format fourteen years after it first went on the airwaves.