Michael Tisserand

Who is the R&B diva making a surprise appearance in the gospel tent? What Canadian songstress is jamming with what New Orleans group? Which Beatle is performing with what Crescent City songwriter? What U.S. President is coming to the Fair Grounds, no doubt? What multiple Grammy-winning trumpeter is going to get funky in Treme—it was on the radio! And what zydeco legend died in his sleep last night?

And most important: W...