Glockenbach join forces with British songstress Ella Henderson for the up-tempo dance-ready single “Lifeline” out today via Astralwerks. “Lifeline” channels that feeling of being with someone you can’t imagine your life without. It follows up from Glockenbach’s Joel Corry, Tenchi, and ClockClock winter collaboration record “Yeah.” The British Singer Ella Henderson impressed the judges of …