Workin' Hard, Playin' Hard  Artist:Ted Nugent

Hard, Ain't It Hard  Artist:Woody Guthrie

Hard, Ain't It Hard  Artist:Kingston Trio

Hard, Ain't It Hard  Artist:The Kingston Trio

Goin' Up's Easy, Comin' Down's Hard  Artist:Bobby Bare

Playin' Hard  Artist:Trey Songz

Hard Workin'  Artist:Loudness

Hard Workin' Man  Artist:Cramps

Hard Workin' Man  Artist:Brooks & Dunn

Work Hard, Play Hard (Remix)  Artist:Wiz Khalifa

Work Hard, Play Hard  Artist:Wiz Khalifa

Hard, Hard Year  Artist:Hollies

Hard, Hard Year  Artist:The Hollies

Work Hard Play Hard (Remix)  Artist:Wiz Khalifa

Work Hard/Play Hard  Artist:Will Oldham

Hard Hard World  Artist:Sawyer Brown

Pride's Not Hard To Swallow  Artist:Hank Williams, Jr.

It's Pretty Hard To Beat The King  Artist:Drop Dead, Gorgeous

Rawk Hard, Rawk Proud  Artist:Don't Drown Amsterdam

Hard to Beat  Artist:Hard-Fi

Letting You Go, (It's Hard)  Artist:Bon Jovi

It's Hard To Walk Tall When You're Small  Artist:Morrissey

It's Hard Not 2 Think About U  Artist:Lil' O

I'm Hittin' Hard  Artist:Kool Moe Dee

Time's A Gettin' Hard  Artist:Eddy Arnold

He's Taking It Hard She's Taking It Easy  Artist:David Allan Coe

You Think My Old Shit Hard You Ain't Seen Nothin'  Artist:Chiddy Bang

LOVIN' YOU AIN'T SO HARD  Artist:Billy Squier

It's Gonnna Be Hard (When I'm Gone)  Artist:The Audition

Time(SBS 드라마 '불꽃' 삽입곡)  Artist:Hard Romantic