Date: September 22, 2014
Leg: Morning Phase Promotion
Venue: Warner Brothers Studios
Country: United States
"Wah-Wah" is a George Harrison, and was part of George Harrison week on Conan's show (every night a different artist covered a Harrisong).
Beck also recorded "Waking Light" at the same time, but it wasn't aired on the show until October 28.
[people and bands
Bass: Justin Meldal-Johnsen
Drums: Joey Waronker
Guitar (Electric): Jason Falkner, Smokey Hormel
keyboards: Roger Joseph Manning Jr.
Maracas: Gus Seyffert
Synthesizer: Gus Seyffert
Tambourine: Gus Seyffert, Roger Joseph Manning Jr.
Vocals: Beck Hansen
Vocals (Background): Gus Seyffert, Roger Joseph Manning Jr.