Niall Horan has mourned One Direction bandmate Liam Payne in a heartfelt social media post, writing: "It just doesn't feel real."

Liam Payne helped One Direction—including fellow former members Niall Horan, Zayn Malik, Harry Styles, and Louis Tomlinson—become one of the biggest boy bands in history with more than 70 million records sold.

In the band's first post since 2020, One Direction mourned the death of Liam Payne, who fell from a hotel balcony Wednesday in Buenos Aires.