With their former Blink-182 colleague Tom DeLonge entrenched with his new band Angels & Airwaves, Mark Hoppus and Travis Barker have formed (+44).

With their former Blink-182 colleague Tom DeLonge entrenched with his new band Angels & Airwaves, Mark Hoppus and Travis Barker have formed (+44). The group's debut, "When Your Heart Stops Beating," was produced by Jerry Finn and will arrive Nov. 14 via Interscope.

(+44), named after the international dialing prefix for the United Kindgdom, also includes ex-Nervous Return member Shane Gallagher and Craig Fairbaugh, who played with Barker in the Transplants. "Mark and I have a natural chemistry after playing together for so long and it's only gotten stronger," Barker says.

On "When Your Heart Stops Beating," Hoppus handled all the singing and also played guitar in addition to bass, while Barker dabbled in keyboards.

After a handful of shows in Europe next month, (+44) will showcase its new material during an Oct. 14 appearance at the Bamboozle Left festival in Pomona, Calif. Dashboard Confessional, Yellowcard, Brand New and Thrice are also on the bill for the two-day event.