The band founded by Ryan Ross, Spencer Smith, Brent Wilson and Urie featured Lauren Pritchard in a single called what?
Lolo (singer): Lauren Pritchard (born December 27, 1987), known professionally as Lolo (stylized as LOLO), is an American singer, songwriter and actress, best known for being featured on the single "Miss Jackson" by Panic! Panic! at the Disco:  Founded by childhood friends Ryan Ross, Spencer Smith, Brent Wilson and Urie, Panic!
"Miss Jackson"