The 90s were undoubtedly the best decade for music, so here's some off the top of my head but there are many others too.
The Kids Aren't Alright - The Offspring
Deep Cover - Dr Dre ft Snoop Dogg
The Changingman - Paul Weller
It Was a Good Day - Ice Cube
Cotton Eye Joe - Rednex
Christmas at the Zoo - The Flaming Lips
Stay - Shakespears Sister
She's Got Issues - The Offspring
Life Is a Lemon and I Want My Money Back - Meat Loaf
I Don't Give a Fuck - Tupac
Ebeneezer Goode - The Shamen
Creep - Radiohead
Scatman's World - Scatman John
Just - Radiohead
What's the Frequency, Kenneth? - REM
No Surprises - Radiohead
Still a N....... - Eazy-E (I've censored it but you can guess the title, it's a word 90's rappers used to refer to one another)
Barbie Girl - Aqua
Karma Police - Radiohead
Hands Up! Hands Up! - Zig and Zag (featuring Rednex)
Suicide Is Painless (Theme from MAS*H) - Manic Street Preachers
So Young - The Corrs
Opus 40 - Mercury Rev
Real Muthaphuckkin G's - Eazy-E
Why Don't You Get a Job? - The Offspring
Celia Inside - The Cardigans
I'll Be Back - Arnee and the Terminaters
Justified & Ancient - The KLF
Lovestruck - Madness
Maria - Blondie
Red Alert - Basement Jaxx
Hey Boy Hey Girl - The Chemical Brothers
Charly - The Prodigy