The twitter world is quite a busy one, and Bollywood contributes a great deal to it. Here's looking at the best star tweets of the day.

King Khan is getting younger on his birthday. The actor, who turns 45 today, tweeted, 'have not had so much fun on my birthday before. toys r us with the kids..learnt ripsticking...dugu,sussanne,raveena & gang of don...partied. thanx for making me feel so special everyone around the world. i am half way home now...but promise to keep u all happy for the next half.'

Most of Bollywood has wished Khan, but Karan Johar who is on a Twitter sabbatical and down with malaria, came alive to tweet, 'So its SRK'S bday...a tweet is warranted!! To the man responsible for my career and dreams!! Thank you....and love u lots bhai!!!'

Meanwhile, Abhishek posted pictures of his wife and birthday girl, Aishwarya. Check out this power couple at their huggiest best! 

Pa-in-law Amitabh shared more details, 'First things first ... thank you all for wishing Aishwarya on her birthday !! Have passed it on to her .. she thanks all ... love Been a day of celebration for Aishwarya .. today sitting on the floor and eating lunch from 'thali'.. so wonderful.. after years !!'

Time for announcements. 

Bipasha Basu announced her first Hollywood project with heartthrob Josh Harnett. She said, 'Very happy to let u all know that am doing my first english language film, SINGULARITY.Its rolland joffe's film opp. Josh Hartnett.'

Neha Dhupia tweeted about her recent US connection as well: 'Our film "phas gaya re obama"is being screened at saiffi in new york this evening!jus a festival circuit update, try n catch it if ur in ny!'

While Bips is heading to America, Mallika Sherawat seems to have no clue when she will be back. She tweeted to her fan question of when she would be back in New York City by saying, 'dunno, Chaz! but when i do, u must serenade me again lol ;-)'

She added, 'took a lil break,2many articles abt my obsessive tweetn lol ;-) thx4 all ur comments abt Hisss,can't respond2 all,but puttin them in my Favs!'

Well, Mallika knows how to stay in the news always, doesn't she?

Well, if you really want to know, then watch out for MasterChef India where director Farah Khan is having a blast.

The director, who was a judge on the show, tweeted about how tough a job it was to judge the awesome food. 'On set of master chef.katrina n akshay 2 hav a cooking face off!dekhte hain who makes a better omelet.I'm the judge.HELP!hope kat knws 2 ck.'

The episode starring Katrina, Akshay and Farah will air on Christmas.

A sign our Bollywood ladies are totally clued in is the latest tweet from Deepika Padukone.

The actor shares, 'Just finished an hour long chat with Mr. Rakesh Jhunjhunwala, popularly known as the 'BIG BULL' of the indian stock market for a biz channel. Interesting to interact with someone outside my own fraternity...:-)'

Sameera Reddy, on the other hand, was trying persuasion of a different kind. She tweeted, 'shooting with the dashing Anil Kapoor on the sets of Tezz in Birmingham! @sonamakapoor trying to convince your dad to join twitter!!'

Sonam replied, 'not happening tried alot already...'

To which Sameera said, 'i think i got him to think about it!! :)'

The proof of the pudding and the sweet talking will be when Mr Kapoor gets online, right gurls?

Ayesha Takia is all praise for husband Farhan Azmi. She tweeted, 'Farhan made awesome chai 2day 4 me as a surprise..yumm..he makes bettr tea than me!(:'

Shahid Kapoor, on the other hand, can't stop gushing. 'Finally saw GRAND TORINO .. Clint eastwood .. Is the man !!!!!'

Meanwhile, love interest Priyanka Chopra has mom and the scenic beauty of Berlin for company. She muses, 'Its an amazing morning in Berlin. Sunny beautiful. I have an afternoon call on set. Mom here. So thinking take her out for some girl time.'