Zayn Malik Tweets to One Direction 'Bro' Liam Payne

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Liam Payne and Zayn Malik at the 2014 BRIT Awards

Although Zayn Malik is no longer a member of One Direction, the singer still celebrated the group's five-year anniversary on Twitter -- with a tweet to his former 1D "bro" Liam Payne.

One Direction Celebrates Five Years as a Band

One Direction was formed on the seventh season of the British reality competition series The X Factor, shortly after the five members of the group (Payne, Malik, Niall Horan, Harry Styles and Louis Tomlinson) all auditioned for the show individually on July 22, 2010. The four remaining members of 1D tweeted missives of thanks to their fans for the past five years, with Payne writing, "Wowwwww 5 years 5 boys what an amazing journey I couldn't thank you all ever enough and thank you Louis Niall Harry and zayn for everything."

Malik replied: "thanks bro !" along with a smiley face and an "x."

Malik also retweeted two of Payne's Tweets noting the five year anniversary.

Unsurprisingly, fans reacted emotionally to the reply. Typical tweets read: "PHYSICALLY FINE EMOTIONALLY DIED," "I'M SCREAMING," and "IM CRYING."

Malik left One Direction on March 25, and the group has carried on without him. One Direction's first four albums all debuted at No. 1 on the Billboard 200 chart and have sold a combined 6.6 million copies in the U.S., according to Nielsen Music.