Bay Area News Group music critic Jim Harrington offers his thoughts on some of the walk-up selections preferred by Giants and A's players.

Giants

"Hell on Wheels," Brantley Gilbert (Buster Posey): The reigning N.L. MVP hits another one out of the park with this rowdy country-rock number. The "outlaw country" vibe nicely contrasts with Posey's nice-guy image.

"Can't Stop," Red Hot Chili Peppers (Nick Noonan): It's a bit of an obvious choice but still mighty potent. But, didn't someone tell Noonan that the Peppers are from the Land of Dodgers? (Maybe that's why he's back in the minors.)

"99 Problems," Jay-Z (Brandon Belt): You can debate the political correctness of the lyrics, but it's hard to argue with the beats and vocals. The song is full of swagger -- the kind a batter might need when stepping in front of a big league pitcher.

"Yo Te Lo Dije," J Balvin (Gregor Blanco): It's a groovy reggaeton offering, delivered with style by the Colombian singer. It's sure to get feet tapping in AT&T Park.

"Harlem Shake" (Pablo Sandoval): It's a trendy, contemporary pick, possessing the right groove for the moment. Some years (months? weeks?) down the road, however, it might seem about as hip of a choice as "Macarena."

"Beer Time," Justin Moore (Hunter Pence): The party is on -- big time! -- in this ode to ice chests, quitting time and blowing off steam. One question: Shouldn't Pence use this walk-up song only in "walk-off" situations? Just saying.

A's

"Sympathy for the Devil," Rolling Stones (Jerry Blevins): What an inspired choice for a flame-throwing reliever! Please me to introduce myself, indeed.

"One," Metallica (Grant Balfour): Nothing gets the blood flowing like a little speed metal. So, why not call upon the genre's most legendary crew -- the Bay Area's own Metallica? It's a perfect choice for one of the most fiery players in the game.

"Homeboy," Eric Church (Brandon Moss): Church is the current King of Outlaw Country, and this is one of his best numbers. A's fans can only hope, however, that "Homeboy" will translate to home runs.

"Reppin Texas," C. Stone (Chris Young): It's a decent hip-hop number, yet one that we hope is never played when the A's are playing the Rangers.

"Regulate," Warren G. and Nate Dogg (Josh Donaldson): Can't go wrong with classic G-Funk -- and this one bumps with the best.

"Welcome to the Jungle," Guns N' Roses (Eric Sogard): It's hardly original, but it still works. I guess some classic walk-up tunes never go out of style.