The Australian duo, made up of twin sisters Lisa and Jessica Origliasso, are seen recording material for their new album in a video posted on YouTube, reported Digital Spy.
The pair began recording their third studio album in 2010, but the project never got off the ground because of a conflict with Warner Bros Records. They parted company with the label in October 2013.
New songs 'Did You Miss Me' and 'Back to You' are previewed in the new video, alongside footage of the pair talking about the forthcoming release.
They have scored seven Top 10 hits in their native Australia, as well as releasing two multi-platinum albums.