The O.C.' actress Rachel Bilson and 'Star Wars' star Hayden Christensen welcomed a child, Briar Rose, in 2014. Here's ...

Hayden Christensen and his daughter, Briar Rose, whom he shares with ex Rachel Bilson, serenaded attendees during a Cubs game ...

We already knew that Rachel Bilson and Hayden Christensen’s daughter Briar Rose is obsessed with music, including songs from ...

Hayden Christensen attended a Chicago Cubs game with his daughter Briar Rose, performing 'Take Me Out to the Ballgame' during ...

The father-daughter duo got a surprise of their own as the helped lead Chicago Cubs fans in the traditional 7th inning ...

Hayden Christensen and his 10-year-old daughter Briar Rose, who he shares with ex Rachel Bilson, sang an adorable duet during ...

In a rare public sighting of the actor with his daughter, Hayden Christensen and Briar Rose shared a sweet moment singing at the Chicago Cubs game.

Rachel Bilson's look-alike daughter, Briar Rose, sings 'Take Me Out to the Ballgame' with dad Hayden Christensen at the ...

Bilson and Hayden Christensen had an on-again, off-again relationship from 2007 to 2017, and welcomed a daughter together named Briar Rose, 8, in Oct 2014.

Briar was so mad about that. She was so mad," recalled Bilson. Rachel Bilson took her daughter Briar Rose to the Taylor Swift Eras Tour, but the 8-year-old was not happy with their early exit.