Michelle Obama Wows in Jason Wu Gown Again

Michelle Obama has won over her fans once again with fashion designer Jason Wu's red gown designed for Monday's Inaugural Ball in Washington, D.C.

The First Lady selected the American designer for the second time; Wu was behind the famous white, single-shouldered gown Obama donned at the Inaugural Ball of 2009.

Wu, who worked closely with Obama and her team on the fit and fabric of the gown, was unsure if the First Lady had selected his work. The designer admitted he was glued to the televised coverage of the ball Monday night, much like the rest of the U.S.

"We weren't sure what time she was going to come on," explained the designer while on the "Today" show Tuesday morning. "We had no confirmation until the second she came out. It's something quite incredible. I'm still pinching myself to see that's all real."

Obama's dress was "ruby" red, and echoed Wu's 2009 gown with its cross-halter straps and loose fit, according to the White House report.

"You have to think about the client, and I felt like red was such a perfect color for her," Wu explained to The New York Times. "It's such a confident color for her and it really was my first instinct."

"I'm still floating," the excited designer added.

Meanwhile, many viewers sounded off on Obama's gown via social media on Monday night and into Tuesday.

"She kills it," wrote one Twitter user. "Michelle Obama steps out in red at the Inaugural Ball."

Brown wrote, "FLOTUS' stunning inaugural ball dress!"

Alternately, many of Inaugural Ball attendees also took to the social media site with their experiences.

"Just parties at the White House," wrote Kelly Clarkson. "I kid you not, Michelle Obama stood up and got the party started… seriously cool First Lady."

Katy Perry, who sang during the event, posted: "Just left the White House. All other parties from here on out will be judged unless they take place at the White House."

Model Chrissie Teigen, whose fiancé John Legend sang during the Inaugural Ball, posted, "I don't even know what to say. It's 3:15am and I just teared up seeing our president getting down at the white house."