Last night, 5 Seconds Of Summer frontman Luke Hemmings confessed to his fans on Twitter that he was writing a song with Josh Ramsay from rock band, Marianas Trench. 

Ramsay, who fronts the popular Canadian group, posted an update to his own social networking page earlier today (February 2) and admitted that the track they've created together is worth keeping. He tweeted:

"Great day in the studio with that feisty @Luke5SOS. Wrote a keeper, hung cellphones from odd ceiling outlets, and generally caused mayhem."

Earlier this month, 5SOS's Calum Hood opened up about the new material they've been working on for their next albumand told fans that it's sounding amazing: "Wrote 2 songs at the end of last year with @JohnFeldy and they're easily my favourite we've ever written. So excited for this next record!! (sic)."

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Watch Marianas Trench's music video for 'By Now' here: