Once a Britney Spears fan, always a Britney Spears fan: That's the message Selena Gomez sent to her Instagram followers after sharing a throwback video of herself passionately singing along to one of Spears' classics.
"The hustle was real," the star captioned the adorable, never-before-seen video.
The snippet shows an 8-year-old Gomez enthusiastically singing along to Spears' 2000 song, "Don't Go Knockin' on My Door."
MORE: Selena Gomez shows off her new blonde hair: 'Back to work'In the video, Gomez is rocking blue-tinted sunglasses as she stands in front of a dramatic digital backdrop of storm clouds and cyclones.
As little Selena, who's now 28, sings, "You better get off my back/Don't go knockin' on my door," she rips off her sunglasses and stares down the camera.
MORE: Selena Gomez launches mental health initiative by sharing letter describing her past strugglesOf course, the star's fans delighted in the surprise post, with Gomez's makeup company Rare Beauty commenting with crying/laughing emojis and declaring, "Too real."
Spears has yet to react to the video.
"Don't Go Knockin' on My Door" was released as part of Spears' sophomore album "Oops!... I Did It Again." The album was nominated for the 2001 Best Pop Vocal Album Grammy and went on to become one of the best-selling albums of all time, selling over 20 million copies.