Question: Who was a bassist for Panic! at the Disco and lead vocalist for the Brobecks?
Sentence (from "Vices &amp; Virtues"): Produced by John Feldmann and Butch Walker, the album was recorded as a duo by vocalist and multi-instrumentalist Brendon Urie and drummer Spencer Smith, following the departure of lead guitarist, backing vocalist and primary lyricist Ryan Ross and bassist/backing vocalist Jon Walker in July 2009.
Relevant evidence: No