Dierks Bentley
This week's on-sales: Metallica, Janet Jackson, Katy Perry and more

A list of upcoming concerts across the Southland, with on-sale dates in parentheses. Empire Polo Club The Big 4 with Metallica, Anthrax, Slayer and Megadeth, April 23 (Fri.) Gibson Amphitheatre Janet Jackson, April 16 (Fri.) Club Nokia Chris Young and...