We can’t let March 1 go by without noting Justin Bieber’s 19th birthday:

Happy birthday, Justin Bieber! Hope it’s full of things you like: cake and swag and stuff. http://instagr.am/p/WUvybgRF2J/People magazine

“Gonna be fun tonight,” he tweeted from London where a $15,000 birthday party was planned at the Cirque du Soir, the Mirror reported.

Gonna be fun tonight. Thanks to everyone for all the birthday wishes. 19!Justin Bieber

#giveback today for my birthdayJustin Bieber

Big night aheadJustin Bieber

Bieber’s parents sent him birthday greetings via Twitter: 

HappyBirthday son !Jeremy Jack Bieber

Happy 19th Birthday @justinbieber!! First Bday I’m not with you! Miss u like crazy. Have a good one!!! Love mom. XoxoPattie Mallette

Happy "Birth"day to me. I’m the one who gave birth 19 years ago. What did u get me @justinbieber? ;)Pattie Mallette

… so did his manager: 

Spoke to the kid and wished him happy bday. He is gonna go hard tonight and well deserved. @justinbieber enjoy your day! Happy 19th Bday!!Scooter Braun

So did some fellow celebs: 

happy birthday to my mate @justinbieber see u tonightCody Simpson

Big happy birthday @justinbieber , have a good day bro !Niall Horan

Happy birthday, @JustinBieber! The screaming fans, the Twitter following, the perfect hair — I’m sorry, I’m thinking of me.Ellen DeGeneres

Happy Birthday to an incredible artist and friend. @JustinBieber ~enjoy 19!Carly Rae Jepsen

… and so did many, many, many of his millions of followers: 

HAPPY"19th" BIRTHDAY!!! JUSTIN BIEBER!!! @justinbieber http://pic.twitter.com/gFYuO3k6xPmaddie tibbetts

What I wrote on my arm today(it says happy birthday Justin Bieber) but Justin didn’t have a happy birthday http://pic.twitter.com/FokSdmMouJSerena Bieber❤❤❤

We made Justin Bieber a Birthday pizza! @kayriiex2 Happy Birthday @justinbieber #LoveYou❤ http://pic.twitter.com/VHOUIJdNxLMaggie

Lol happy birthday justin bieber http://pic.twitter.com/KNG0EFsCsYmorgan

E Online is reporting that during the birthday festivities Bieber’s entourage had a run-in with club security, which prompted the group to leave: 

Justin outside his birthday party in London (pic #1) http://pic.twitter.com/umkLg8i1jZJustin Is Talented

HAPPY BIRTHDAY JUSTIN!!!!! Celebrations begin NOW! @justinbieber love u bro!Alfredo Flores

They say you can be silly with the closest of your friends. That’s def the case with us. Happy 19th… http://instagr.am/p/WUft1YSv-L/Alfredo Flores

Cake Cake Cake Cake Cake!!! #JB19 http://pic.twitter.com/HMbS5leZmbAlfredo Flores

Justin Bieber on his 19th birthday! Big cake hun Justin? lol http://pic.twitter.com/qRJkwrxIXgHαρρүBιятнdαүJuѕтιη✝

My night is officially ruined thanks to the paparazzi. They can’t leave the poor kid alone for 5 minutes. #justin #justindrew #justindrewbieber #believe #myworld #swaggie #cardigan #sweater #sweats #school #highschool #california #summer #spring #iloveyou #ofwgtka #pinkdolphin #pink #neff #wetseal #emo #goth #paparazziғood. вιeвer. ѕleep.

While E! News blamed security for ruining Bieber’s birthday, fans blamed the media — as did his pal, Alfredo Flores: 

Worst birthdayJustin Bieber

Justin Bieber Tweets "Worst Birthday" After Confrontation With Club Security Puts End to Party http://eonli.ne/ZSRoO2E! News

The tweet prompted many concerned replies: 

Good night guys! I’m so sad because justin bieber said that was he’s worst birthday.I hate paparazzi… http://pic.twitter.com/bM9Ju6IAQ8Mr. Bieber :3

In response to Justin Bieber’s Tweet "Worst birthday ever" …hahaha people mannn http://pic.twitter.com/lD9ocWSbLYGreg Shirk

Sunod sunod yung reply nung na tweet si Justin Bieber ng "Worst Birthday" :( http://pic.twitter.com/uXWwgFHF6yB I T T E R ▲

For the assholes who think Justin Bieber tweeted "worst birthday" bc he didn’t get a car or something #stfu http://pic.twitter.com/DBXhnRUGhHJFerszz

By the way, the Daily Mail is reporting that Bieber’s “worst birthday” tweet was prompted by news that his friend, Lil Twist, had been pulled over by the California Highway Patrol.