Last night (6 January), Williams dropped a five-second teaser of her forthcoming solo material with a link to a site for her solo project, which is titled Petals For Armour. It ends by showing a release date - 22 January.
Paramore released their last album After Laughter in 2017.
In the 15 years that Paramore have been together, Williams has only released one solo single - 2009's "Teenagers" featured on the Jennifer's Body soundtrack.
Williams has also featured on a number of other tracks over the years, including songs by B.o.B, Chvrches, Weezer, Tegan and Sara, American Football, and more.