Nicole Richie's daughter Harlow, 2 1/2, joined her dad Joel Madden in a YouTube video for his band's new song.
Joel, along with twin brother Benji Madden, is part of Good Charlotte. The group put up a 32-second YouTube video, seen below, to publicize the availability of their new song on iTunes.
Joel had Harlow in his arms, and tweeted, "Harlow helps announce our song on itunes LOL She's loves goin 2 work w/me"
He and Nicole are also parents to baby son Sparrow.WATCH: