The solid-gold source posted on Twitter that her son and his bandmates are in the US and already thinking of a title for the follow up to 2011's 'Suck It and See'.
Posting online, Jill Helders tweeted: "I don't know if it helps to clear things up but lads are in the desert!"
She later added: "And now we start on 5th album titles!".
The Sheffield band are rumoured to be moving in a heavier direction on their new songs and could team up with QOTSA man Josh Homme, whom they have worked with before and regularly records in the area.
Breaking the news online this week (Sept 17), The Arctic Monkey's US fansite wrote on Twitter that: "Joshua Tree is the place. the wheels are in motion for AM5."
Arctic Monkeys were last seen in the UK when they performed at the opening ceremony of the Olympic Games in London.
That night saw the band perform a cover The Beatles song 'Come Together', a cover which subsequently went into the Official UK Charts.
Below: everything you need to know about the new Arctic Monkeys album