Singer unveils clip for remixed version of 'The Thrill of It All' single
"Writing's on the Wall" clip highlights agent's interaction with Bond girls
All proceeds from the re-recorded 'In the Lonely Hour' single will benefit Big Nose Day
The duo enlist orchestra and choir to belt out Grammy-winning single
British soul crooner's debut LP, 'In the Lonely Hour,' drops this May
"I think country is the new rock & roll — everyone is trying to stretch out"
Song was first sign their reunion would stick: 'Oh my God, we're back!'