Pop superstar Britney Spears has revealed that she is currently working with a vocal coach on sessions for her upcoming new record.

Writing on her official Twitter page over the weekend, the 'Till The World Ends' beauty told her fans that she has been busy in the studio creating new music for her album:

"Just finishing up with my vocal coach & now I'm off to dance rehearsals. How's everyone's Friday? Where you going for Labor Day weekend? :)"

Meanwhile, all of Spears's social media outlets have taken on a blacked-out appearance and her spokesperson confirmed that it's part of her eighth album marketing campaign: "With album eight on its way and a rumoured Las Vegas residency in the pipeline, eagle-eyed fans have spotted that all of Britney's social networks have adopted a blacked-out theme... the mystery continues."

The superstar recently unveiled a countdown clock that displays an end date of September 17 along with the tag line, "All Eyes On Me".