MUMBAI: Actor Aamir Khan's much awaited film ‘PK’ is probably the first Bollywood film to have an official audio teaser getting promoted by the producers on Twitter using its audio card feature.

UTV motion pictures became the first in India to use Twitter's audio card for the official audio teaser of ‘PK’, as part of their promotion for the movie.

With a single tap, the audio card allows users to discover and listen audio directly in their timeline on both iOS and Android devices.

Apart from Aamir, the film also stars Sanjay Dutt, Anushka Sharma, Sushant Singh Rajput, Boman Irani and Saurabh Shukla among others.

Directed by Rajkumar Hirani, the film is set to release 18 December. The music of the film is composed by Shantanu Moitra and Ajay-Atul. The first song of the film was released on 8 November.

Recently, social networking site Twitter partnered with SoundCloud and iTunes to launch an audio card feature. The feature will allow users to share various songs and other audio files through their Twitter account on mobile devices. It will soon be made available to iOS and Android devices.