If you're wondering what the kids are up to these days, just get online.
There's already a new social media teen trend for 2015: breathing in helium; then burping.
Like most of the interesting things I see, I was on Facebook and found this on my news feed.
It's a little old, but I thought it was cool.
In 100 seconds they capture 100 years of different fashion trends.
It's crazy how much things have changed, while still not changing that much at all!
Plenty happened in 2013.
So much happened, in fact, that it would take forever to list it all here.
Instead, just watch this little compilation video of the top Google searches and trends from the past year.