Ashton Kutcher and his 19-year-old stepdaughter Scout Willis collaborated on "a little song about a loved one" they wrote and performed Saturday morning.

Ashton, 32, played guitar and sang background vocals as Bruce Willis and Demi Moore's middle daughter sweetly carried on a folksy tune called 'My Sober.' Ashton apologized for being "an awful guitar player" but happily strummed along.

The 'No Strings Attached' star married Scout's mom in 2005 and has maintained a close relationship with Demi's extended family, including her ex-husband Bruce Willis.

Do you think Scout and Ashton can hold a candle to this adorable father and daughter duet?

Check out their home video after the jump.