After inspiring the Vikings with "Purple & Gold" via a Minnesota Public Radio premiere, the Purple One also debuted the non-Favre track "Cause And Effect" via his hometown airwaves. Ditto the seasonally appropriate "Hot Summer." The opening guitar sorta sounds like "Jessie's Girl" but then you get a psych-beach organ, a Banana Splits-style sing-a-long, and a "futuristical sound." The results? ...