Celebrities send their bday wishes to Britney

jamielynnspearsJamie Lynn Spears

Happy Birthday @britneyspears !!! Me and maddie love and miss ya very much!!

nicolerichieNicole Richie

HAPPY BIRTHDAY @britneyspears!

ddlovatodemetria lovato

Happy birthday to the amazing and iconic @britneyspears!!!

justinbieberJustin Bieber

happy birthday shoutout to my friend @britneyspears

RollingStoneRolling Stone

Happy birthday Britney Spears! @robsheff toasts her decade-plus of pop awesomeness as she turns 30: http://bit.ly/rqu2w5

Los40_SpainLos 40 Principales

Happy Birthday Britney Spears! Por cierto, ¿Has oído ya Love 2 Love U? - http://Los40.com http://www.los40.com/actualidad/noticias/has-oido-love-2-love-u-el-nuevo-temazo-de-britney-spears/nota/1400899.aspx vía @Los40_Spain

(ALELLUJAH!!!!)

ENewsE! News

Anatomy of a Pop Superstar: Happy 30th Birthday, Britney Spears! http://eonli.ne/smtrFh

candiesbrandcandie's

Happy Birthday Britney Spears! We ♥ our former Candie's Girl! XO http://twitpic.com/7n36q5

PerezHiltonPerez Hilton

Happy birthday, @britneyspears!!!! http://perez.ly/uS4zBG I'm still a slave for you!!! xoxo

JosephKahnJoseph Kahn

Happy 30th birthday to one of the artists I really truly adore... @BritneySpears!

 

 

rihannaRihanna

HAPPY BIRTHDAY @britneyspears love ya

JordinSparksJordin Sparks

Happy birthday to the amazing @britneyspears!

famosdotcomfamos*

Happy 30th birthday to Britney. What an amazing year you have had! You are a shining star that warms our hearts.... http://fb.me/1rRkTus5U

LanceBassLance Bass

@britneyspears Happy 30th grandma!!! http://yfrog.us/5avamdz

 

usweeklyUs Weekly

Happy Birthday #BritneySpears! She hits the big 3-0 today! To celebrate, we have pics of Brit & Jason Trawick in love: http://bit.ly/vhPBz2

billboardBillboard

Happy birthday, @BritneySpears! In honor of your big 3-0, here's a look at your top 20 biggest Billboard hits http://bit.ly/uBOz7I

DJPaulyDPauly D

Happy Birthday To My Girl @britneySpears !!! I Luv Birthdays !!!

brianfriedmanBrian Friedman

Happy Happy Bday Brit xxxo @britneyspears B

VH1VH1

Happy 30th Birthday @BritneySpears! A toast to the pop superstar's most hottest looks: http://on.vh1.com/tUQajh <3

pepsiPepsi™

Happy Birthday Britney Spears—she brought us “The Joy of Pepsi” at age 19! #PepsiIcon

 

KimKardashianKim Kardashian

Welcome to the 30's club @BritneySpears Love you! http://bit.ly/rXszZE

chasebenzChase Benz

@britneyspears Happy Birthday, Boss! http://instagr.am/p/W7IQj/

@OnAirWithRyanOn Air/Ryan Seacrest

Celebrate @BritneySpears’ 30th Birthday With Her Top 5 Best Live Performances [VIDEO] http://bit.ly/v54N60

peoplemagPeople magazine

It's Britney's 30th birthday! Check out her 30 biggest OMG moments—and let's get #HappyBirthdayBritney trending! http://ow.ly/7MBHF

eonlineE! Online

30 years of @BritneySpears in photos: http://eonli.ne/sXBG7D#happybirthdaybritney

 

TheRealXtinaChristina Aguilera

Happy 30th birthday @britneyspears!!!

MileyCyrusMiley Ray Cyrus

Sendin b-day love to @britneyspears :) cheers to another great year!!!

MileyCyrusMiley Ray Cyrus

Let's make @britneyspears day & show some love! Let's trend #HappyBdayBritney

TheEllenShowEllen DeGeneres

I can't believe Britney is turning thritney. I mean thirty. Happy birthday @BritneySpears!

ItsBritneyBritney Spears App!

Happy 30th Birthday @BritneySpears! We love you so much, and we hope you have the best birthday ever!

SonyMusicGlobalSony Music Global

What's a birthday party without balloons!? http://pic.twitter.com/nNhP4gHL

 

RyanSeacrestRyan Seacrest

Happy birthday @britneyspears... 7 years and so many frosted tips later, we're both finally 30! http://twitpic.com/7n81wf

ONLY1DARKCHILDRodney Jerkins

Happy 30th to @BritneySpears Enjoy this time with your family! Many Many more and continued Blessings!

iamwillwill.i.am

Happy birthday @britneyspears...you are the best...im proud of your love and dedication to music...happy birthday

SabiSoundzSab-bion

Happy 30th birthday @BritneySpears! Do it big! http://youtu.be/Q8kSiAZCax4 #happybirthdaybritney

@heidiklumHeidi Klum

Happy 30th Birthday @britneyspears !! Hugs and Kisses!

"Yo, Britney, happy birthday!You're still a babe at 30!" Gabe Saporta(Cobra Starship)

"Happy birthday, Britney! loved watching you growing up. You made a difference in music, and you made a difference in my life."Jason Derulo

"If there's someone that influenced a generation in every aspect of the word, I'd say it's Britney Spears," he said. "Happy birthday, sweetheart!" WILMER VALDERRAMA

"Happy birthday, Britney!Happy 30th! That's awesome!" Kris Allen

Britney, you're 30, girl. I see. You get your grown woman on!" Nick Cannon

more to come :)