On August 16, 2019, “Flightless” label released “Infest the Rats’ Nest”, the fifteenth King Gizzard & the Lizard Wizard studio album. It was recorded in 2019, and was produced by Stu Mackenzie.

Personnel:

• Stu Mackenzie – vocals, guitar, bass, recording, mixing
• Cook Craig – guitar, backing vocals
• Ambrose Kenny-Smith – harmonica, backing vocals
• Joey Walker – bass, guitar, backing vocals
• Michael Cavanagh – drums, backing vocals
• Eric Moore – backing vocals 
• Michael Badger – recording
• Joe Carra – mastering

Track listing:

1. Planet B – Stu Mackenzie
2. Mars for the Rich – Stu Mackenzie, Joey Walker, Michael Cavanagh
3. Organ Farmer – Stu Mackenzie, Joey Walker, Michael Cavanagh
4. Superbug – Stu Mackenzie
5. Venusian 1 – Stu Mackenzie
6. Perihelion – Stu Mackenzie, Joey Walker, Michael Cavanagh
7. Venusian 2 – Stu Mackenzie, Joey Walker, Michael Cavanagh
8. Self-Immolate – Stu Mackenzie, Joey Walker, Michael Cavanagh
9. Hell – Stu Mackenzie, Joey Walker, Michael Cavanagh