Obama's Inauguration, Instagrammed: Beyonce, Katy Perry Show All

Inaugural guests like 2 Chainz and Alicia Keys shared their inaugural experience with their fans.

President Obama's second inauguration may not have garnered the same attention as his even more historic swearing-in four years ago, but Instagram didn't seem to notice.

The social networking site, as well as Twitter, was abuzz with celebrities and everyday citizens sharing their photos from Monday's (January 21) ceremony. As of press time, there were nearly 15,000 Instagram photos with the hashtag #inaug2013. Some of the biggest names in music were there for the entire inaugural weekend, including Beyoncé, Jay-Z, Katy Perry, 2 Chainz and Alicia Keys. And they made sure all their fans knew they were having a historically good time.

Here's some of the best celebrity Instagrams from the weekend:

Beyoncé Preps for "Star-Spangled Banner"

When Beyoncé floated onstage Monday to perform the national anthem, she couldn't have looked more at ease. Stunning in a long black gown with her blonde hair in waves, she had no fear removing her earpiece or planting a kiss on the POTUS's cheek. But apparently, even the Queen B needed some practice before performing for all of America. The singer posted photos of herself hard at work just 12 hours before she took the stage, holding the sheet music to the iconic track.

Katy Perry Brings Back Aretha's Iconic Hat

Remember back in 2009 when Aretha Franklin wore that hat to sing "The Star Spangled Banner"? You know, the one with the giant diamond-encrusted bow? Well, Katy Perry definitely did. The singer had her own miniature version of the now-iconic headpiece, which she wore on a ribbon on her own hat during Monday's ceremony.

Alicia Keys Soaks Up the Spotlight

Alicia Keys was not ashamed to soak up her inaugural experience. The "Girl on Fire" singer is set to perform at three of Monday night's inaugural balls, and she's obviously not taking any of it for granted. After running through soundchecks, Keys shared several photos with her fans to prove how "honored" she is to be a part of the historic weekend. In one, she is drenched in blue and purple light as she stands in front of two American flags.

2 Chainz Ditches the Chains

For Sunday's Hip-Hop Inaugural Ball, the Atlanta rapper traded in his signature chains for a classic black bowtie, sharing a "lil sumthn" with his Instagram followers. Later that night, he also shared a photo of himself with model Tyson Beckford. The Based on a T.R.U. Story rapper took MTV News backstage of the fete, where he was honored with the Hip Hop Action Network's Street Soldier Award. "I've been a felon since I was 15 years old, and I found out you could reinstate your votership," he told MTV News. "So ... I wanted to use my platform [to] go notify [other] felons about what they can do to get their voices heard, and go out and talk about voter suppression."

Fun. Gets Sweet

As if witnessing history take place wasn't enough, the celebs also got a sweet something extra for trekking to D.C.: Cookies in the shape of President Obama and Vice President Joe Biden. Both Alicia Keys and Fun.'s Jack Antonoff had no shame Instagraming their food. (We wouldn't either.) Fun. will be performing at the inaugural balls along with Keys.

T-Pain Rocks Generation Now Party

With the elite company of John Legend, Common and will.i.am, T-Pain attended Saturday's Generation Now party, thrown by OurTime.org, a nonprofit that aims to encourage young people to vote. And from the looks of his Instagram account, it was a royally good time. In one photo, T-Pain has the crowd screaming as he performs with his back to them. In typical inaugural fashion, blue and red lights and white stars surround him.