He and Joel began performing together while they were students at La Plata High School in Maryland.
For about a year, he and Joel ran a clothing line called MADE Clothing.
Born to Robin Madden and Roger Combs, he and Joel have an older brother named Josh and a younger sister named Sarah. He married actress Cameron Diaz in January 2015.
He co-wrote and co-produced a few tracks on the 2005 Hilary Duff album Most Wanted.