The fourth season of the American reality competition television series Lego Masters premiered on Fox on September 28, 2023.
On September 13, 2023, the series was renewed for a fifth season.
[2] Host Will Arnett and judges Jamie Berard and Amy Corbett returned from the previous seasons.
Alongside the renewal in December 2022, it was announced that Will Arnett would return to host.
On July 11, 2023, it was announced that the fourth season would premiere on September 28, 2023.