16.
Slaughterhouse at Old Rock House, May 25
For hip-hop fans who still appreciate lyricism, Slaughterhouse epitomizes the term "supergroup." Joe Budden, Royce Da 5'9", Crooked I and Joell Ortiz returned to St. Louis in April for the first time since 2009 -- this time bringing a stronger performance, a bigger catalog, and most importantly, bars.
-- Calvin Cox