This is really hard to do! It's easy to pick out 50 albums that are my favorite, but individual songs? There are millions of those! Anyway, here goes (I gave up trying to put them in order):

• "Baby Got Back" - Sir Mix-a-Lot
• "I Believe" - REM
• "Mongoloid" - Devo
• "She's Lost Control" - Joy Division
• "The Storm" - Big Country
• "3 a.m. Eternal" - the KLF
• "Senses Working Overtime" - XTC
• "The Humpty Dance" - Digital Underground
• "Debra" - Beck
• "Gloria" - U2
• "Stephanie Says" - Velvet Underground
• "Temptation" - New Order
• "Revelate" - The Frames
• "Up on the Catwalk" - Simple Minds
• "Memories Fade" - Tears for Fears
• "Say Hello to Heaven" - Temple of the Dog
• "Garden" - Pearl Jam
• "Multiply" - Jamie Lidell
• "PDA" - Interpol
• "Forcefield" - Beck
• "Message in a Bottle" - Police
• "Fevered" - The Stills
• "Lithium" - Nirvana
• "White Lines" - Grandmaster Melle Mel & The Furious Five
• "Staying Fat" - Bloc Party
• "Grass is Greener" - Radio 4
• "Just Like Heaven" - the Cure
• "Silver Rocket" - Sonic Youth
• "Common People" - Pulp
• "The Passenger" - Iggy Pop
• "The Coast" - Paul Simon
• "The Children Saw the Shame" - the Skids
• "Reptile" - Nine Inch Nails
• "It's Tricky" - Run-DMC
• "the Hand that Rocks the Cradle" - the Smiths
• "Smack My Bitch Up" - Prodigy
• "Train in Vain" - the Clash
• "Christmas at Ground Zero" - Weird Al
• "Strange Love" - Depeche Mode
• "Remembrance Day" - Big Country
• "Is She Weird" - the Pixies
• "This Charming Man" - the Smiths
• "Dark of the Matinee" - Franz Ferdinand
• "All the Pretty Little Horses" - Nick Cave
• "Racing Rats" - Editors
• "Kinky Afro" - Happy Mondays
• "Don't Look Back in Anger" - Oasis
• "At Home He's a Tourist" - Gang of Four
• "Coma White" - Marilyn Manson
• "Enemies/Friends" - Hope of the States

This is way too hard. I should add songs by Elvis Costello, David Bowie, Radiohead and Siouxsie & the Banshees, but I can't decide which ones...