The 5 Seconds of Summer guys are hard at work on their next album.

5 Seconds of Summer's Ashton Irwin 'In Love With The New Tunes'

Ashton Irwin, Luke Hemmings, Calum Hood and Michael Clifford have been busy crafting their second studio album for a few months now.

They have been in and out of the recording studio with various members of bands like Simple Plan, Good Charlotte and more.

5 Seconds of Summer Shows Competitiveness & Reveals Next Album's Title?

The band has taken to Twitter to enlighten fans on their progress.

On Sunday, Irwin shared a photo of Hemmings and producer John Feldmann who the band works with frequently.

Feldmann shared a photo on Instagram that included Irwin.

Thx @julianhip for the amazing photo of @ashtonirwin and @luke_is_a_penguin A photo posted by John Feldmann (@johnfeldy) on Mar 8, 2015 at 10:23pm PDT

Hemmings shared a photo of himself from their session too.

On Tuesday, Hood tweeted what appeared to be lyrics: "I wanna little bit of California, with a little bit of London sky".

Hemmings even retweeted him.

Irwin then dished the next studio album "is coming along swimmingly".

"[I]t's ROCKIN," the drummer added.