It’s a walk for a cause like no other, and the weather is expected to be nothing short of exceptional. The annual Golden Triangle American Heart Association has put another dime in the jukebox, baby, as its signature fundraiser — the Heart Walk — has this year turned into the 2015 Heart of Rock ‘n’ Roll 5K Run/Walk to be held Saturday, Nov. 14, near the Montagne Center on the campus of Lamar University.