"I crank the music on the way to the pitch, warm up with the team and then meditate alone before we hit the grass," Peralta says.

This is all fine and dandy for group sports — surely the energy that builds among teammates contributes to an inspired performance. But what happens when you're playing a solo sport or simply working out? Can music still spark that adrenaline boost?

It seems to work for runner Lisa Kelly. Known nationally for her unwavering fan support for the University of Notre Dame and as the 2012 winner of Volvo's "Biggest Fan of the Big East" contest, Kelly runs for personal pleasure and fitness, occasionally training for marathons and other events.

"With my hectic life, there are many days that I don't feel like running," Kelly says. "But once I turn on my playlist and start warming up, it's hard to turn back."

Kelly says that she maintains several music playlists that help her control her running speed and pace, with No Doubt, Selena Gomez and Fort Minor all making appearances.

"My playlists consist of a lot of upbeat music," Kelly says.

All of this adrenaline stuff rings true for LockerDome CEO Lozano, who walks the line between the real world and the sports world every day. As a former baseball player, Lozano blasted "Eye of the Tiger" before high school games. As a runner, he creates playlists with songs that are perfectly synced with each leg of a 5K race. As a fan, he gets pumped about the Cardinals' at-bat music and hums as he promotes athletes on LockerDome.com.

And as a business leader? Well, sometimes you reach for a little something extra when you and your team of crack Web developers are pulling your fourteenth consecutive sixteen-hour day of coding. Sometimes you're at the end of a ridiculous 21-inning game, but the bases are loaded, and you know that with the right motivation, your team can eke out that perfect squeeze play, cross home plate and momentarily revel in a job well done before moving on to the next day's work.

Lozano narrows his eyes, his fingers scrolling urgently through his Grooveshark collection, searching for the perfect tune to rally his team and himself.

"I've got it."

And so begins the Eminem pep rally.

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