Here's some songs whose lyrics express bitterness in varying degrees:
"Big Shot" - Billy Joel.
"Garden Party" - Rick Nelson.
"That'll Be The Day" - Buddy Holly.
"I'm Not Your Stepping Stone" - The Monkees.
"Jessie's Girl" - Rick Springfield.
"I Want You to Want Me" - Cheap Trick.
"My Best Friends Girl" - The Cars.
"Strange Fruit" - Billie Holiday.
"Paint It Black" & "Beast Of Burden" - The Rolling Stones.
"I Knew You When" - Billy Joe Royal.
"Na Na Hey Hey (Kiss Him Goodbye)" - Steam.
"Take This Job And Shove It" - Johnny Paycheck.
"Easy To Be Hard" - Three Dog Night.
"Missing You" - John Waite.
"Refugee" - Tom Petty & The Heartbreakers.
"May The Bird Of Paradise Fly Up Your Nose" - Little Jimmy Dickens.
"It's My Party (And I'll Cry If I Want To)" - Leslie Gore.
"A Boy Named Sue" - Johnny Cash.
"Your Cheating Heart" - Hank Williams.
"Waterloo" - ABBA.
"Blame It On The Bossa Nova" - Edie Gorme.
OK, the Edie Gorme one is a joke and doesn't qualify.
And the one by Steam isn't very much about bitterness either, but it kind of sounds like it is.
Some of the others can be either bitter or just sad, depending on your interpretation of the words.
I just wanted to see if anyone was paying attention.

Add Bob Dylan's "Masters Of War" to his impressive list of eloquent, bitter diatribes.
Pearl Jam did a cover of it.
Gig 'em, FAST FRED '65.
Before the world wide web, village idiots usually stayed in their own village.
[This message has been edited by FAST FRED (edited 3/23/2006 1:45a).]