Mika sings for Amitabh Bachchan!

Here's what your favourite celebrities are tweeting.

It's a dream come true for singer Mika Singh who lent his voice to Amitabh Bachchan in the song Kammo from Department.

Director Ram Gopal Varma shared the song and tweeted: 'Check out Amitji, Sanjay and Rana grooving to the 'Kammo' Song in `Department`.' 

Composed by Bappa Lahiri, the song is sung by Mika and Sudesh Bhosle. Department releases on May 18.

It was Salman Khan who was somewhat instrumental in getting Arjun Kapoor to join films. 

The young Kapoor lad,  who is making his debut with Yash Raj Films' Ishqzaade, was inspired by Salman to lose weight and enter Bollywood. Khan, on his part, took him under his wings and trained him.

Strangely, Salman was missing when the rest of Bollywood was promoting Arjun on Twitter. The Bodyguard star recently took to Twitter to clear the air.

'Yup ! Arjun ranawat in my janam bhumi INDORE . Aur bolo , Yup ! I call arjun kapoor arjun ranawat,' he tweeted.

Salman isn't very happy with Bandra's nightlife, the western Mumbai suburb where he lives.

'Nothing much . went fr dinner at 12 n most of the places in bandra were shut n nite clubs shut at 1230 , boring bandra ,its bloody sad . Bandra used to b so much fun , v r done vit work by 10 reach hm at 11 work out n after that if v wanna chill etc every thing is shut . So sad fr the youth aree my father who is 76 has dinner at 1230 , not fair na ,' he added.

Meanwhile, director Kabir Khan shared a picture of Salman from the sets of Ek Tha Tiger, where they shot with a setup of 75 Canon 5D cameras. Ok... as promised here's a pic of Tiger from the sets,' he tweeted with the picture. 

Bipasha Basu is training hard for her new fitness DVD. 'Training Hard on the new BB Love Yourself routine!Shoot fr the dvd begins on the 16th of may!Can see results already so quickly:)Happy!' she tweeted.

Abhishek Bachchan is back on the sets of Bol Bachchan. 'Back on the sets of Bol Bachchan. Few more days and it's a wrap on the film. Releases 6th July. Excitement is becoming!' he updated.

Whereas Vivek Oberoi is back on the sets of Krrish 3. 'Back on the sets of Krrish 3 today after a month of shooting for Jayanta! Pumped and pysched 2b back in character as a supaah villain! ;)

Sonakshi Sinha, on the other hand, is shooting a romantic song with Akshay Kumar for Rowdy Rathore. 'Shooting a romantic song for Rowdy Rathore in cliffy shiv samundaram in mysore which is turning out to be a death defying action sequence trying to climb rocks in a saree!! Now i know what @akshaykumar feels like whike doing all those crazy stunts!!!!' she updated.

Sunny Leone is working on her Hindi skills for Jism 2. 'Morning everyone! Having a cup of coffee and about to start studying my lines for @jism2,' she wrote.

Director Madhur Bhandarkar, who recently shot with yesteryear dancing sensation Helen for his upcoming film Heroine, shared a picture of them together and wrote: 'The adorable Helenji joins the team of #Heroine. Privileged & Honored.'

Ronit Roy posted a picture of him with Anil Kapoor from the sets of Shootout at Wadala. 'On the sets of "Shootout at Wadala" Overjoyed to be working with the super talented Anil Kapoor,' he wrote with the picture. 

Mahesh Bhatt visited Vikram Bhatt and Bipasha Basu on the sets of Raaz 3. 'On the sets of Raaz 3. A triumphant Vikram briefs Bipasha for the last talkie shot,' he tweeted with the picture.