Away from his drinking sessions, the Irish singer has been busy promoting his new album Heartbreak Weather during the coronavirus lockdown.
Despite canceling his Nice to Meet Ya World Tour back in April, the album has claimed the No. 1 spot in both the UK and Ireland since its March 13 launch.
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On July 23, the 26-year-old also took to social media to celebrate the 10th anniversary of One Direction's formation on the UK version of the X Factor.
"When I met these four gents there was no way I thought we would go on to do what we did," he posted on Instagram. "So many unbelievable memories we shared together. We felt the adoration of millions from around the planet on a daily basis and it was mind blowing.
"It's such a major part of our lives and always will be. Cheers to US today boys and thank you to all you beautiful people who have supported us over the last 10 years."
Horan's not the only former member of the band to recently open up about their partying. Ex-bandmate Liam Payne recently told the BBC that while he no longer sings in front of millions, he still belts out some of their hits at home — after a few drinks!
"Usually when I'm really drunk is when the One Direction playlist starts to come out," Payne, 26, revealed on BBC Radio 1.
"It can go one or two ways," he added. "We can be one of those really happy drunks that wants to listen to "Act My Age" and all those kinds of songs, but then also I get a little bit thoughtful when I'm drunk sometimes — then we go into "Once in a Lifetime" and all the slow jams."
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