Watch and Listen: Keira Knightley singing 'Lost Stars' theme song from 'Begin Again'

Keira Knightley's new film Begin Again (formerly titled as Can A Song Save Your Life?) opens in select US theaters this Friday June 27th and everywhere July 2nd; And in UK Cinemas July 11th. Keira will be attending the New York Premiere today (or tomorrow). Also, she will be on The Daily Show with Jon Stewart on Comedy Central tonight and on The View tomorrow morning to promote this film. In the meantime, you can hear Keira singing her version of Lost Stars in the video below. The song is one of the songs and theme song from the film's soundtrack. She sounds great on it and it's catchy!

Keira sings 6 (out 16) tracks from Begin Again Soundtrack, which will be released July 1st! 
"Begin Again" Soundtrack - apple.com‎ Pre-order the "Begin Again" film soundtrack today on iTunes! (You can sample a few tracks Keira sings including Lost Stars).

Song Titles Keira Knightley sings in Begin Again Soundtrack:
1. Lost Stars 2. Tell Me If You Wanna Go Home 3. Like A Fool 4. Coming Up Roses 5. A Step You Can't Take Back 6. Tell Me If You Wanna Go Home (featuring Begin Again co-star Hailee Steinfeld) [Rooftop Mix]

Watch and listen to Keira singing Lost Stars (with lyrics and clips from Begin Again included) below...

Here’s the official synopsis for Begin Again:

The latest film from writer-director John Carney (ONCE), BEGIN AGAIN is a soul-stirring comedy about what happens when lost souls meet and make beautiful music together. Gretta (Keira Knightley) and her long-time boyfriend Dave (Adam Levine) are college sweethearts and songwriting partners who decamp for New York when he lands a deal with a major label. But the trappings of his new-found fame soon tempt Dave to stray, and a reeling, lovelorn Gretta is left on her own. Her world takes a turn for the better when Dan (Mark  Ruffalo), a disgraced record-label exec, stumbles upon her performing on an East Village stage and is immediately captivated by her raw talent. From this chance encounter emerges an enchanting portrait of a mutually transformative collaboration, set to the soundtrack of a summer in New York City.