Taylor Swift and Liam Payne have been named the most influential Twitter users of 2018.
Brandwatch released this year's list alongside their 'influencer score', which rates celebrities out of 100 on their ability to influence.
Swift was named the most Influential Female user even though she only tweeted 13 times this year, taking the top spot ahead of Kim Kardashian.
— Taylor Swift (@taylorswift13) 1 March 2018
She was given an 'influencer score' of 98/100 and was followed closely by her former rival Katy Perry who got 96/100.
Demi Lovato and Ellen Degeneres also made the top 5.
I like when a lone fly catches a ride on an international flight. I always think how surprised it’ll be when the flight attendant opens the door and it’s not in London anymore
— KATY PERRY (@katyperry) 8 October 2018
Liam Payne was crowned the most influential male ahead of US president Donald Trump.
Honestly life feels like a movie sometimes,the ups and downs and twists and turns, despite the drama choose your own genre try and make it a comedy or a romcom and when you need to bring the action
— Liam (@LiamPayne) 31 October 2018
Justin Bieber and Barack Obama also appeared on the list.
Wishing everyone an amazing day
— Justin Bieber (@justinbieber) 24 October 2018
The list is compiled by looking at levels of genuine engagement Twitter users have with various celebrities' tweets.