The chart-topping singer was seen on Tuesday meeting with soldiers from the National Guard at the US Capitol, where she was rehearsing for her rendition of the Star-Spangled Banner ahead of the ceremony.
Dressed in a long white coat, a matching face covering and a unique hairstyle, Gaga was seen speaking with the soldiers, who all sported traditional camouflage.
As the photos started doing the rounds on social media, many couldn’t help but point out that Gaga’s ensemble put them in mind of an iconic look from film history...
Meanwhile, other Gaga fans had their own fun with the photos, posting a wave of memes on Twitter…
Gaga is one of several high-profile musicians who will make an appearance during Biden’s inauguration, with country star Garth Brooks and singer Jennifer Lopez also set to perform during the ceremony on Wednesday.
She’ll be performing the US national anthem, which she previously gave a stunning rendition of before the Super Bowl in 2016.
During Biden’s presidential campaign, Gaga was one of the former VP’s most high-profile supporters, having previously worked with him on a campaign raising awareness of sexual assault on college campuses.
Donald Trump will not be in attendance on Wednesday, making him the first outgoing president to intentionally skip his successor’s inauguration in more than 150 years.
Vice president Mike Pence is attending in his place, with former presidents Bill Clinton, George W Bush and Barack Obama also present in Washington.
After the inauguration, there’ll also be a TV special in celebration of Biden’s arrival in the White House, featuring remote performances from stars like Katy Perry, John Legend, Justin Timberlake and Demi Lovato.