The "American Horror Story" actress posted an acoustic cover of Tom Petty's "American Girl."
"I like to celebrate her by doing things that she loved to do," Lourd said the caption of her post. "So here’s a little video of me singing one of her favorite songs."
Shot In Carrie's Bathtub
Billie continued to state that the song was filmed in Fisher's bathtub which was "one of her favorite places."
Having the video shot in the bathroom was not only effective because of its history but it also had amazing lighting and acoustics.
Fisher's 27-year-old daughter ended her message by saying that she would "probably have a pint of vanilla Haggen Dazs and a Coca Cola for dinner."
Carrie's "Star Wars" co-star Billy Dee Williams also shared a tribute to the late Princess Leia.
Williams tweeted a classic black and white photo from the "Star Wars" set and included a loving message.
"My dear Carrie...thinking of you.....You sure were A Force to be Reckoned With."
Fisher Passed Away In 2016
Fisher went into cardiac arrest while flying on a plane from London to Los Angeles on December 23, 2016. She passed away in a hospital four days later.
The next day, Fisher's mother and Lourd's grandmother, Debbie Reynolds, passed away as well.
Another Of Her Favorite Tunes
In 2018, Billie dedicated a song to her mother on the second anniversary of her death.
She performed Jackson Browne's "These Days," another one of Carrie's favorite songs.
"This is the piano her father gave her and this was one of her favorite songs," Lourd said, "And as the song says, we must 'keep on moving.'"