The 35-year-old songtress' last studio outing was her Christmas album, "Happy Christmas," which was released in November 2010.
Simpson posted several black and white photos of herself in the recording studio, hinting some new music.
"Studio Vibin'," she captioned one photo.
She also posted a picture with the legendary Linda Perry in the studio.
Last year Simpson said that her husband and two kids hardly know her as a recording artist.