Sunday, Monday, Happy Days.  Tuesday, Wednesday, Happy Days.
Thursday, Friday, Happy Days.  The Weekend comes, my cycle hums,
Ready to race to you.

These days are ours.  Happy and free. (Oh Happy Days)
These days are ours.  Share them with me. (Oh Baby)

Goodbye gray skies, Hello Blue, 'cause nothing can hold me when I hold you.
Feels so right, it can't be wrong. Rockin' and rollin' all week long.

(Instrumental break)

Sunday, Monday, Happy Days.  Tuesday, Wednesday, Happy Days.
Thursday, Friday, Happy Days.  Saturday, what a day, groovin' all week with you.

These days are ours.  Share them with me. (oh Happy Days)
These days are ours.  Happy and free. (oh Happy Days)
These Happy Days are yours and mine.
These Happy Days are yours and mine, Happy Days.

ORIGINAL COMPLETE LYRICS:

Sunday, Monday, Happy Days.  Tuesday, Wednesday, Happy Days.
Thursday, Friday, Happy Days.  The Weekend comes, my cycle hums, ready to race to you.

These days are ours.  Happy and free. (Oh Happy Days)
These days are ours.  Share them with me. (Oh Baby)

Goodbye gray skies, Hello Blue, 'cause nothing can hold me when I hold you.
Feels so right it can't be wrong, rockin' and rollin' all week long.

Sunday, Monday, Happy Days.  Tuesday, Wednesday, Happy Days.
Thursday, Friday, Happy Days.  Saturday, what a day, groovin' all week with you.

These days are ours.  Share them with me. (oh Happy Days)
These days are ours.  Happy and free. (oh Happy Days)

These Happy Days are yours and mine.
These Happy Days are yours and mine.

Sunday, Monday, Happy Days.  Tuesday, Wednesday, Happy Days.
Thursday, Friday, Happy Days.  Saturday, what a day, rockin' all week with you.

These days are ours. Won’t you be mine. (Oh Happy Days)
This day is ours (Oh Happy Days) Oh please be mine.

Hello sunshine, goodbye rain, she’s wearing my high school ring on her chain.
She’s my steady, I’m her man, I’m gonna love her all I can.

Gonna cruise her round the town, show everybody what I’ve found.
Rock’n’roll with all my friends.  Hopin’ the music never ends.

These Happy Days are yours and mine (oh Happy Days) 
These Happy Days are yours and mine (oh Happy Days) 
These Happy Days are yours and mine, Happy Days.

Thanks goes to Mike G. for help with the lyrics.

The theme was as popular as the show and charted all the way up to #5 on the Top 40 list in 1976.  The only Top 40 hit that Truett Pratt and Jerry McClain ever had almost wasn’t. When Happy Days was introduced to viewers it used Bill Haley’s Rock Around The Clock as the theme. The rights to use Haley’s hit were revoked early on in the first season and so this theme was written. 

Of course, Rock Around the Clock charted as well, but back in the 1950's.  Rock Around the Clock was #1 for 8 weeks in 1955.

An original Happy Days lunch box.

Rock Around The Clock

The original Rock-n-Roll song by Bill Haley and the Comets was used for the first few episodes of the show.

One, two, three o'clock, four o'clock, rock, 
Five, six, seven o'clock, eight o'clock, rock, 
Nine, ten, eleven o'clock, twelve o'clock, rock,
We're gonna rock around the clock tonight.

Put your glad rags on and join me, hon,
We'll have some fun when the clock strikes one,
We're gonna rock around the clock tonight,
We're gonna rock, rock, rock, 'til broad daylight.
We're gonna rock, gonna rock, around the clock tonight.

When the clock strikes two, three and four,
If the band slows down we'll yell for more,
We're gonna rock around the clock tonight,
We're gonna rock, rock, rock, 'til broad daylight.
We're gonna rock, gonna rock, around the clock tonight.

When the chimes ring five, six and seven,
We'll be right in seventh heaven.
We're gonna rock around the clock tonight,
We're gonna rock, rock, rock, 'til broad daylight.
We're gonna rock, gonna rock, around the clock tonight.

When it's eight, nine, ten, eleven too,
I'll be goin' strong and so will you.
We're gonna rock around the clock tonight,
We're gonna rock, rock, rock, 'til broad daylight.
We're gonna rock, gonna rock, around the clock tonight.

When the clock strikes twelve, we'll cool off then,
Start a rockin' round the clock again.
We're gonna rock around the clock tonight,
We're gonna rock, rock, rock, 'til broad daylight.
We're gonna rock, gonna rock, around the clock tonight.