The 22-year-old British singer gave fans a sneak peek into a brand-new track through an Instagram, reported E! online.
"Little Song I wrote for fun yesterday," he captioned the post with a black and white video.
Liam has not yet confirmed anything about his solo project, but the new track has left fans waiting for more.
He is not the only one who appears to be working on his own projects.
The tracks titled "Already Home," "Coco," "Endlessly" and "5378 Miles" list only him as both co-writer and performer.