Barker’s numerous solo collaborations have included Yelawolf, The Game, Lil Wayne, Tom Morello, Cypress Hill, Ludacris, RZA, Slash, Steve Aoki, DJ AM, Kid Cudi, Ty Dolla $ign, Prayers, Kid Ink, ANTEMASQUE and many many others.
Aside from drumming and producing, he founded the clothing company/lifestyle brand Famous Stars and Straps in 1999. Companies such as DC and Zildjan cymbals have co-designed products in his name. He recently released his first memoir through Harper Collins titled Can I Say, which was a critically acclaimed New York Times bestseller. 2016 saw the return of Blink-182 with their critically acclaimed, chart-topping #1 album California coupled with their sold-out headline North American tour.