One Direction fans were left fuming after former member Zayn Malik failed to commemorate the band's 10-year anniversary.
The dad to be, who left the band in 2015, was the only one out of the group that did not mark the momentous milestone.
One Direction's other members Harry Styles, Liam Payne, Louis Tomlinson and Niall Horan all took to social media to share moving tributes dedicated to the moment that launched their careers.
Fans were quick to notice Zayn's social media silence and didn't appear too impressed.
Among comments on social media, one fan said they were 'disappointed' by the ex-1D singer.
"I’m very sad and disappointed @zaynmalik never said anything for there 10 year anniversary #onedirection10years,” wrote one loyal One Direction fan.
"Umm Hello wake uppppp it’s the 10th anniversary #onedirection 10years,” wrote another.
A third wrote: “I'm still clinging on this hope that @zaynmalik will say something... JUST HOPING OKAYY.”
The group formed in 2010 after being brought together during X Factor.
The fivesome then went on to achieve worldwide fame and are considered one of the biggest boy bands around the globe.
After Zayn quit the band in 2015, the other four continued with their musical careers before pursuing solo material.
Among the touching messages to mark the band's anniversary, heartthrob Harry shared a gushing message on social media.
"I’ve been struggling to put into words how grateful I am for everything that’s happened over the last ten years," Harry wrote.
"I’ve seen things and places that I’d only ever dreamt of when I was growing up. I’ve had the pleasure of meeting and working with some of the most incredible people, and gained friendships that I know I will treasure for the rest of my life.
Liam also shared a cute screenshot of the text that he sent his dad when the band was formed ten years ago.
"What a journey… I had no idea what we were in for when I sent this text to my Dad ten years ago at this exact time the band was formed," Liam wrote.
Even the band's music mogul and creator Simon Cowell commemorated the moment that the band was launched.
"Today is a very special day. I was lucky enough to meet five guys. Who were so much fun. So talented. It feels like 10 minutes ago. And you made it happen," the X Factor judge wrote.
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