He formed both of these acts with his identical twin brother, Joel Madden, with whom he was a coach on The Voice Australia from 2015 to 2016.

He has appeared as a back-up vocalist for artists such as MxPx, Kill Hannah, Apoptygma Berzerk, Mest, The 69 Eyes, Sean Kingston, Three 6 Mafia, Chamillionaire, and Matisyahu.

[3] Madden started the fashion line called Made Clothing in 2001, along with his brothers Joel and Josh.

[citation needed] On April 3, 2010, Madden took part in a boxing match against MTV and VH1 host Riki Rachtman at Ellismania 5: Get These Brawls.

The event was hosted by Jason Ellis at The Joint in the Hard Rock Hotel and Casino in Las Vegas.

Then unknown rappers, Machine Gun Kelly, Rockie Fresh, Kreayshawn, Cassie Veggies, HXLT, and Wiz Khalifa all appeared on the mix-tape.

The company gained success quickly with the brothers taking management of Jessie J, Chase Atlantic, Architects, Bad Omens, Waterparks, Eyedress, Poppy and More.

The two were unofficially engaged before Christmas Day in 2014[10] and were married on January 5, 2015,[11] in a Jewish-inspired ceremony, at their Beverly Hills home.