Kelly Clarkson: Inaugural Ball 2013 with Brandon Blackstock!

Kelly Clarkson is beaming with joy while posing with her fiance Brandon Blackstock before heading to the 2013 Inaugural Ball at the White House on Monday (January 21) in Washington, D.C.

The 30-year-old singer tweeted a photo of herself in the car saying, “My dress barely fit in the car for tonight’s festivities. I feel like Cinderella! Thank you Oscar De La Renta!”

“Me and Brandon in our “fancy” attire :) Fun night!” Kelly tweeted. “Just partied at the White House ….I kid you not, Michelle Obama stood up and got the party started ….seriously cool First Lady :)”

Also pictured: Kelly and Beyonce chatting after they both performed at the Inauguration earlier in the day.

“Me and B just hangin’ out ….don’t worry about it. Seriously, God did good. She is so beautiful!” Kelly wrote on Facebook.