Plus, the stand-out trends, top retweets and most-used emojis
The most followed individual globally on Twitter? Pop powerhouse Katy Perry still reigns supreme. And for the first time Rihanna entered the top five, (@ladygaga, @britneyspears & @jtimberlake were bumped out of the clutch of highest-ranked people in 2015).



Harry Styles (@Harry_Styles) leads the list of most followed people in the UK. He also took the crown for most retweeted tweet of 2015. This got over 718,000 RTs (we’re slightly baffled too):
All the love as always. H
— Harry Styles. (@Harry_Styles) March 26, 2015
Today is a big step in our march toward equality. Gay and lesbian couples now have the right to marry, just like anyone else. #LoveWins
— President Obama (@POTUS) June 26, 2015
I'm so happy after such a long struggle to be living my true self. Welcome to the world Caitlyn. Can't wait for you to get to know her/me.
— Caitlyn Jenner (@Caitlyn_Jenner) June 1, 2015
Leonard Nimoy 1931-2015
Read: http://t.co/pw7zYRRlts
— Leonard Nimoy (@TheRealNimoy) February 27, 2015