Carrie Underwood had no problem "keeping it real" while posting this makeup-free, sweaty selfie in August, and we absolutely love her for it.
No one knows how to post a racy selfie like Kim Kardashian! The mother of two made headlines -- and inspired others like Sharon Osbourne -- with this nude selfie in March. "When you're like I have nothing to wear LOL," she captioned the pic.
Most Sentimental Pic
Before he deleted his Instagram, Justin Bieber actually held the site's most liked post in May, thanks to a nostalgic throwback photo of himself locking lips with ex-girlfriend Selena Gomez. "Feels," the captioned the pic, which received more than 3.6 million likes.
Weeks after helping Bieber win the most liked photo on Instagram, Selena Gomez -- currently Instagram's most followed person -- claimed the site's top spot with a sweet ad for Coke in July. "When your lyrics are on the bottle," she captioned the snap, which now has 5.9 million likes.
The usually very private Olsen twins treated fans to their "first public selfie ever" while taking over Sephora's Instagram in April.
Who can forget Kim Kardashian's infamous "Taylor Tapes?" The reality star dropped one hell of a bombshell in July, releasing portions of a phone call between Kanye West and Taylor Swift, during which Taylor seemingly approved Kanye's song, "Famous." Taylor had previously said she never approved the disputed lyric -- "I made that b**ch famous" -- while Kim and Kanye said otherwise.
Swift, of course, didn't go down without a fight, posting her own response to the video on Instagram. "I would very much like to be excluded from this narrative, one that I have never asked to be a part of, since 2009," she wrote.
Hell seemed to have frozen over when Kim Kardshian and Amber Rose got together for a little "tea" and took a selfie to prove it -- less than a week after Rose got into a NSFW Twitter feud with Kardashian's husband (and her ex), Kanye West, in February.
Justin Timberlake found himself in a little hot water while trying to encourage fans to vote in November, actually breaking Tennessee law by posting a pic from the polls. However, he was never charged and his wife, Jessica Biel, later made fun of him for it.
Most Devastated Tweets
I went to sleep early. Woke up to this. To my fellow humans outside of the US. We don't want this. And we are heartbroken.
While celebs like Justin Timberlake shared encouraging posts to fans in November, the tide quickly turned when Donald Trump was elected president on Nov. 8, with Miley Cyrus, Christina Applegate, Kunal Nayyar and Chaz Bono just a few of many expressing their heartbreak post-election.
Our 2016 social media wrap up wouldn't be complete without a Mannequin Challenge, and no one nailed it quite like our favorite oversharer, Blac Chyna. The 28-year-old model recorded her version of the social media craze just moments before giving birth to baby Dream in November.