1. David After Dentist
We were all there to witness David's thought process under anesthesia after the dentist. The video has over 130 million views.
2. Mr. Trololo
You know exactly how it goes. The performance by Russian baritone Edward Khil has over 29 million views.
3. The Duck Song
Bum bum bum bumbadabum. This song is a classic and has raked in over 370 million views.
4. JK Wedding Entrance Dance
We all thought briefly about doing this for our weddings, especially after seeing it done for Jim and Pam's wedding during an episode of The Office. The video has over 97 million views.
5. "Imma Let You Finish"
Remember this moment from the 2009 VMAs when Kanye West interrupted Taylor Swift's acceptance speech by saying Beyoncé had one of the best videos of all time? Yeah, that YouTube video has racked up over 32 million views, and that moment gave birth to a huge meme.
6. Llamas with Hats
I'm sure you watched this at one point in your life when your stomach made the rumblies that only hands could satisfy. The video has over 40 million views and even spawned its own series.
7. "Here It Goes Again" by OK Go
If you didn't think this was the coolest music video in 2009 and you didn't try to replicate it on your treadmill, what were you even doing? The video has over 44 million views.
8. Susan Boyle's audition video
We laughed, we cried, and we became massive Susan Boyle fans after watching her 2009 audition for Britain's Got Talent. It's got over 234 million views.
9. So, Your Cat Wants A Massage?
It's pretty self-explanatory. If you want to massage your cat, this is a very thorough tutorial. This video has over four million views.
10. United Breaks Guitars
This viral song rips United Airlines to shreds because they broke the singer's guitar on a recent flight. The video has over 18 million views.
11. Autotune The News
The series was started in 2009, and the "very thin ice" bit is catchy AF. Honestly, I think cable news shows should consider autotuning all of their news because this video alone has over nine million views.
12. The Muppets: Bohemian Rhapsody
If you haven't seen the Muppets' version of this classic, you need to. The web conference-turned-music video has over 71 million views.
13. Crazy Frog
This song is annoyingly catchy, and though it was released in 2005 and the song in it, "Axel F," was recorded in 1984 for Beverly Hills Cop, this piece of internet history was uploaded to YouTube in 2009.
14. "Shooting Stars" by Bag Raiders
If you've never seen this video or heard this song, you're a liar. You definitely have. It was uploaded in 2009 and has become a massive meme ever since.
15. Surprised Kitty
We must protect this cat at all costs. This video has over 78 million views, and I think I'm at least half of them.
16. The Annoying Orange
The poor apple never saw it coming, but over 212 million people watched its unhappy demise.
