The 26-year-old singer/songwriter is preparing to release his second solo record, after his first album Flicker in 2017.
‘Going through heartbreak helped write the ballads, even some of the happy songs – the sad songs that are dressed up as happy songs sometimes,’ he told Billboard.
‘I have stuff that I want to write about on my mind all the time. I had just gone through a break up, which helps when it comes to writing songs, I guess. It helps vent the emotions.’
Niall split from 22-year-old Pitch Perfect actor Hailee after about a year together.