Kelly Clarkson and Brandon Blackstock
Courtesy Kelly Clarkson
01/22/2013 AT 11:35 AM EST
After helping President Barack Obama begin his second term
with a powerful rendition of "My Country, 'Tis of Thee," Kelly Clarkson
celebrated in style.
The singer – who is engaged
to Nashville-based talent manager Brandon Blackstock – attended the inaugural ball with her fiancé on Monday.
Sharing her political partying experience with her 2.6 million followers
, Clarkson, 30, chronicled her evening on Twitter.
"My dress barely fit in the car for tonight's festivities. I feel like Cinderella! Thank you Oscar De La Renta!" she Tweeted
, revealing a photo of herself wearing a floral patterned gown.
Then it was time to pose for photos with Blackstock. "Me and Brandon in our 'fancy' attire :) Fun night!" she later Tweeted
Though Clarkson assured followers she was having a ball, she credited the First Lady
with getting the festivities going.
"Just partied at the White House ....I kid you not, Michelle Obama stood up and got the party started ....seriously cool First Lady :)," she Tweeted