"Well I have asked for what I wanted for 14 years," Britney Spears wrote of her desire to record a new version of her 1998 debut single "...Baby One More Time"

The Grammy Award winner, 40, serenaded her 41.8 million Instagram

followers Friday with a haunting rendition of her 1998 debut single "...Baby One More Time"

in a dark mirror video of herself performing acoustically during a break from doing laundry.

She also opened up about her years-long campaign to release an updated

a version of the song, which was apparently thwarted as she had little control over her career during her 13-year conservatorship.

Spears released the track in September 1998 as the lead single from her debut album of the same name.

The song was nominated for Best Female Pop Vocal Performance at the Grammy Awards and it topped the charts in at least 22 countries.

udge Brenda Penny, the Los Angeles justice who overturned the conservatorship,

as part of an investigation into his role as the conservator of her estate.