The boy band launched a hiatus in 2016 and Liam and the gang have all enjoyed different levels of success as solo artists, with Harry on top thanks to a successful stint as an actor in "Dunkirk" and his hit eponymous album and singles "Sign of the Times" and "Kiwi".
Speaking to SiriusXM this week (begin September 16), Liam said, "I haven't spoken to Harry in a while, so I don't know where his head is at... (but) I heard he mentioned it (reunion) in some sort of magazine thing, or whatever, the other day, which is cool."
"I think everybody else has been really outspoken. I think they're ready to go whenever. I think Niall was ready the day we decided to stop. He was like, 'I'm sure we're coming back in tomorrow, boys!' He was just ready to go."