Last year, it was announced that British singer Olly Alexander had split from his bandmates Mikey Goldsworthy and Emre Turkmen and would be going forward with Years & Years as a solo project.
Alexander admitted that time in the group was difficult as the trio found it hard to agree on anything, femalefirst.co.uk reported.
He told NME: "We could never really agree on what we liked in the music and what direction we wanted to go in, so that made the songwriting process difficult.
"It was never lyrics; (Goldsworthy and Türkmen) would never touch lyrics. It was just, like, general direction: how 'poppy' something was gonna be. Pop was, like, a dirty world, which is a little crazy."
However, he acknowledged that the disagreements helped to make the music better, saying: "Arguments over music can really help you make something good, and I think it did with us.
"Like, I really love all the music we made, but it always came with its own complications.
"You're kind of in a relationship when you're in a band. I mean, I'm still in a relationship with these people, but it's just a different one now. It was like a break-up, and then you have to speak about it in interviews."
However, the break-up was not acrimonious as Goldsworthy is due to tour as part of Years & Years' live band.
He said: "Mikey's just the best person to have on the road because he just plays his Switch and has bants with the lads."