She completed the look with pearl bracelets, and smokey eyes with glitter details. Her caption simply said: "I'm just here to help".
Jennifer Lopez, on the other hand, opted for an all-white ensemble from Chanel.
The reactions to Lopez's outfit were overwhelmingly positive on social media, where viewers praised the singer's look and her performance.
Oversized sunglasses and a sparkly face mask, she added a touch of glitz to match her new go-to hydrating cup. She sang the US National Anthem into a golden mic.
For Lopez's performance, which saw the singer perform a medley of patriotic songs including This Land Is Your Land and America the attractive, she opted for an equally unique outfit of all-white.
If they were characters in a film, you would say that the costume designers had been too heavy handed on the symbolism, but result ensured that Melania - while looking undeniably chic - had an nearly funereal air as she and her husband departed for Mar-a-Lago, while Lopez looked infused with hope.
A diehard supporter of the Biden campaign alongside fiance Alex Rodriguez, the pair spoke with the now President about the importance of the Latino vote during an Instagram live in October.
Actress Kaling posted a heartfelt photo of her daughter watching the inauguration on TV and wrote: "It matters". Many performers were part of "Celebrating America", a 90-minute multi-network broadcast hosted by actor Tom Hanks, which witnessed performances by Demi Lovato, Bruce Springsteen, John Legend and Katy Perry among others. "What an honor to spend a few moments with these fearless men and women", she wrote.
Another said: "Lady Gaga serving some Hunger Games symbolism is exactly what I needed today".