Savage Garden singer Darren Hayes files for divorce from husband Richard Cullen ... trends now

He's about to be truly, madly, divorced. 

Savage Garden frontman Darren Hayes, 51, has officially filed for divorce from his husband Richard Cullen, 53, after 17 years of marriage.

According to TMZ, the Australian pop star filed his dissolution docs Monday in Los Angeles, citing irreconcilable differences.

It comes just months after the former couple announced their separation back in May.

In an emotional Instagram post, Hayes admitted that he'd kept his marriage woes a secret for 'the past two years', despite being an 'open book' when it comes to his music. 

'After 17 years of marriage to the best person I ever met, Richard and I have chosen to accept that our union has greatly and beautifully come to rest,' he wrote.

'In honour of this realisation, we separated earlier this year and have been supporting each other emotionally throughout this massive changed in our lives.'

Hayes went on to address the 'ugly questions' about what led to his marriage split in order to avoid any hurtful speculation.

'No, there's no scandal to report, no infidelity, guilty or third party. It's just life. We adore each other and always will,' he said.

'We view our marriage as our greatest collaboration. Nobody can ever take away what we achieved together. We are still best friends. We always will be.

'Besides, we have a very cute and needy labradoodle to take care of, and the business of joy to attend to.' 

Hayes concluded his post by praising his fans for their loyalty over the years.

'Thank you for always supporting our union – and for being so gentle with this delicate thing we made. Love Darren (and Richard),' he wrote, in reference to his 2009 album This Delicate Thing We've Made.