The stage is set! #BieberOnSunrise http://t.co/LnbVmunL

Thursday: Scientists prove Bieber Fever is a real condition. Don’t miss the details on this significant breakthrough. #BIEBERonSunrise

Those overseas can try watching @justinbieber’s performance via our live online stream for #BIEBERonSunrise - http://t.co/Mc6VUB2H

Goodnight all, from the @sunriseon7 team. Huge day for the show ahead. We’ll see you in a few hours. Get some rest and save your voices.

Production Notes: This place is crazy today. Stage taking shape by the harbour. And we're adding directions to the website. #BieberOnSunrise

Justin continues playing throughout the commercial break. The Beliebers' loyalty is always rewarded. #BieberOnSunrise http://t.co/NtZEXBcr

See you in the morning @harry_styles @real_liam_payne @louis_tomlinson @zaynmalik @niallofficial !! #1DonSunrise

Oh. Who threw that? #bieberonsunrise http://t.co/dX0zjKnp

#Directioners! We've got something extra special for you tomorrow morning. Don't miss it! #1D #OneDirection #correctedthxguys

He stained our couch when he spat it out! RT @reyhanhearts1d: @sunriseon7 loved watching Niall's vegemite reaction

#OneDirection are set to tour Australia in 2013! Check out the view from our newsroom... http://t.co/7cdKzNmt

Aussie band @5secsofsummer to support @onedirection on their world tour! Congrats guys! #sun7 #1d #5sosfamily #directioners #5sos

One Direction are coming into our studio next week! We're expecting #1D mayhem! #1DonSunrise

Hey #Directioners, see @onedirection’s new video clip for “More Than This” tomorrow on Sunrise #sun7

Did you love this performance as much as we did? WATCH @ollyofficial performs 'ARMY OF TWO' ..  http://j.mp/17lW68i  pic.twitter.com/IwOSCoFHvH

.@justinbieber on stage! #bieberonsunrise http://t.co/Dkv0d5LS

TODAY'S MOST-VIEWED VIDEO: @ollyofficial the weatherman WATCH:  http://j.mp/10Jey6S  #sun7

One Direction: The full interview - Sunrise http://t.co/BCILJO6k [vid] #1DonSunrise #1D

OMB It's Justin's water bottle! http://t.co/WMo0oleF

Naughty! RT @justinbieber: Going skinny dippin in the ocean in Melbourne come find me