Official trailer of 'Sing' released
The official trailer for the upcoming animated film 'Sing' has been released. The film revolves around a koala, voiced by Matthew McConaughey, who holds a singing competition in a bid to revive his rundown theatre. The film also has characters​ voiced by Reese Witherspoon, Seth MacFarlane, Taron Egerton and Scarlett Johansson. It is scheduled to release on December 21.