One Direction fans may be mourning the departure of Zayn Malik, but they’re also celebrating their newest 1D favourite, Louis Tomlinson.

The mighty force that is the 1D fans managed to get #SassyLouis and #masterofallwisdom trending within minutes.

Fans created the hashtags after Louis got into a war of words with producer Naughty Boy, who put up a demo of a solo track recorded by Zayn called I Won’t Mind.

Naughty Boy
Naughty Boy arriving for the BRITS nominations in 2014 (Yui Mok/PA)

But Louis took offence, tweeting: “Wow @NaughtyBoyMusic you’re so inconsiderate pal, seriously how f***ing old are you? Grow up! #masterofallwisdom.”

However, it’s not the first time the Directioners have got a hashtag trending in One Direction’s honour.

Here’s a look at some of the most memorable (and quirky) hashtags courtesy of the Directioners:

1. #notawig

The result of Zayn Malik tweeting from Little Mix’s account after his phone died. Zayn wanted to answer a burning question about an Edward Scissorhands costume he’d worn. So now you know: it was NOT a wig.

2. #WelcomeHomeLiamsSecondKidney

A medical mystery was solved for fans as Liam Payne revealed he had two perfectly healthy, functioning kidneys. Why the fuss, you ask? Well, Liam had struggled with one faulty kidney since he was a child. He took to Twitter in August 2012 to tell his fans:

3. #ReplaceZayn

Following shock news of Zayn’s departure from the band (he released an official statement saying: “After five years, I feel like it is now the right time for me to leave the band”), there was all sorts of speculation about if he’d be replaced, and suggestions for who could replace him. And then there was the legion of angry fans saying he could never be replaced. Oh, the passion.