Ashton Kutcher collaborates with stepdaughter for online performance

London: Ashton Kutcher has teamed-up with his teenage stepdaughter Scout Willis for an online performance.

The actor, who is married to Demi Moore, and the 19-year-old have shown off their musical talents in a new online video, reports the Daily Express.

Ashton is seen strumming a guitar in the clip while Scout sings a ballad, entitled My Sober.

The actor describes it as a "little song about a loved one" they wrote together, before adding: "I`m an awful guitar player!"

As well as playing the instrument, the actor also added his vocals to the track, which has become an online hit since it surfaced earlier this week.