Janet Jackson teases new song 'The Great Forever'

Janet Jackson took to Instagram to tease new song "The Great Forever" on Thursday.

The 49-year-old singer shared a photo of the lyrics to the single, and included a link to a 24-second clip from the track. The upbeat song will appear on Jackson's forthcoming 11th studio album, Unbreakable.

Jackson previously released the single "No Sleeep" featuring J. Cole in June, and followed up with a music video for the track last month. The singer will debut Unbreakable on her label Rhythm Nation Records in the fall.

Good Morning America gave fans a behind-the-scenes look at Jackson's album cover photo shoot the same day. Wardrobe designer Kim Bowen said she planned "a whole conglomeration of different looks" for the album and the star's upcoming tour.