Top 5 opening chords to a song

Always wanted to toss this one out. A song that either now or back in the day, was one, that as soon as you heard the first lick, had you reaching for the volume button in your vehicle.

Older Songs

1) Van Halen- Unchained.

2) Asia- Heat of the Moment.

3) Pretty much any ACDC song.

4)Rolling Stones- Start Me Up

5) U2- I will follow.

Top 5 since then

1) Rockhead- Bed of Roses

2) Powerstation- Bang a Gong

3) REM- What's the Frequency

4) Collective Soul- Smashing Young Man

5) Pearl Jam - Even flow

Anyone else have some tunes, that make them reach out and turn the volume to the right?

Good stuff

Deep Purple-Smoke On The Water (one of the world's greatest riffs to start a song)

Boston-Foreplay/Long Time (Sounds like an orchestra is playing)

Dire Straits-Money For Nothing (I want my MTV)

Almost any Zep, Stones, ACDC, Doors, Sabath

Dam, it's a wonder I can still hear

Oldie

<=========Black Dog

Accept - "Bound to Fail"

Madball - "Set it Off"

Biohazard - "Punishment"

Judas Priest - "United"

I'm gonna be ridiculed for this one, but here goes:

Stryper - "Calling on You"

Whipping Post

 Brown Sugar

Hey Joe

And even though they are not chords, when you hear the alarm clock

or the cash registar  ya know who it is

Queen-Another one bites the dust

Loverboy-Turn me loose

Alice in Chains-man in the box

U2-Wide awake in America

I'm may get slaughtered for this:

Dexleys midnight runners- come on eileen

This

hehehe  I'm guess he means Riffs