Twitter is an online social networking and microblogging service created in March 2006 by Jack Dorsey. Twitter enables its users to send and read messages called tweets that are limited to 140 characters.
Lady Gaga created her account as "ladygaga", and tweeted for the first time on March 26, 2008. Actually, she's the second most followed female on this social network.
"op rehearsing for my video just dance and am now at wmc to perform at the Armani and nervous records party. But I am no nervous record! ..."11:56 PM - Mar 26, 2008
In February 2017, To celebrate her highly-anticipated performance at Super Bowl Halftime show, Lady Gaga has launched her own emoji in collaboration with Twitter. The set includes five custom emoji for each of the Gaga's albums that appear when users tweet their titles in the form of a hashtag, such as #TheFame or #BornThisWay. There are some hidden tags as well, including #DiscoStick, #CallMeJoanne, or #ShowMeYourTeeth.
Super Bowl pack
NOTE: If you know the missing dates, please complete the table.
 She's consecrated "queen of twitter" (most followed person/female) dethroning to Britney Spears.
 Guinness World Records on May 18 (with 10.131.629 followers) and on June 29 (with 11.259.372 followers).
 She lost her title "most followed person" against Justin Bieber.
 She lost her title "most followed female" against Katy Perry.