Lol hi Lainey, I'm Laney, too! I have crazy taste in music genres, so it's all over the place.

Right now I've got:
Cascada - Evacuate the Dancefloor
David Guetta ft. Akon - Sexy *****
Lady Gaga - Just Dance
Taio Cruz - Dynamite
Taio Cruz - Break Your Heart
Kevin Rudolph - I Made It
The Black Keys - Tighten Up
Fischerspooner - Never Win
Rhianna - Rude Boy
Mike Posner - Cooler Than Me
The Medic Droid - Fer Sure
Anberlin - Feel Good Drag
Cobra Starship - Good Girls Go Bad
Cobra Starship - Hot Mess
Cobra Starship - Bring It (Snakes on a Plane)
The Donnas - Take it Off
Hole - Celebrity Skin
Carrie Underwood - Cowboy Cassanova
Gretchen Wilson - Redneck Woman

Anything by The Faint, Linkin Park, or Head Automatica.

Ooh, I love when people post their workout playlists! Here's mine (warning: it's all over the map, musically speaking...lol):

Super Trouper - ABBA
Goody Two Shoes - Adam Ant
Livin' on the Edge - Aerosmith
Line Up - Aerosmith
Amazing - Aerosmith
Take On Me - A-Ha
Respect - Aretha Franklin
Venus - Bananarama
Walk Like an Egyptian - The Bangles
The Old Apartment - Barenaked Ladies
One Week - Barenaked Ladies
Alternative Girlfriend - Barenaked Ladies
Shoebox - Barenaked Ladies
Stayin' Alive - The Bee Gees
I Love Myself Today - Bif Naked
We Didn't Start the Fire - Billy Joel
Ride on Time - Black Box
Call Me - Blondie
The Tide is High - Blondie
Heart of Glass - Blondie
Hit 'Em Up Style - Blu Cantrell
Old Time Rock and Roll - Bob Seger
Born to Run - Bruce Springsteen
Born in the USA - Bruce Springsteen
No Surrender - Bruce Springsteen
She's Only Happy Whe She's Dancing - Bryan Adams
Summer of 69 - Bryan Adams
Believe - Cher
Strong Enough - Cher
Fighter - Christina Aguilera
Lady Marmalade - Christina, Pink & Mya
Dirrrty - Christina Aguilera
Ain't No Other Man - Christina Aguilera
Can't Hold Us Down - Christina Aguilera
You Spin Me Right Round - Dead or Alive
Let's Hear It For The Boy - Deniece Williams
Survivor - Destiny's Child
Walk of Life - Dire Straits
Blue - Eiffel 65
A Little Less Conversation - Elvis vs. JXL
Not Afraid - Eminem
Welcome to the Jungle - Guns n Roses
Paradise City - Guns n Roses
Sweet Child o Mine - Guns n Roses
Hollaback Girl - Gwen Stefani
The Power of Love - Huey Lewis and the News
The Middle - Jimmy Eat World
Get Outta My Way - Kylie Minogue
Aphrodite - Kylie Minogue
Beautiful Dirty Rich - Lady Gaga
Born This Way - Lady Gaga
Just Dance - Lady Gaga
Poker Face - Lady Gaga
Numb/Encore - Linkin Park & Jay-Z
Extraordinary - Liz Phair
Express Yourself - Madonna
Vogue - Madonna
This One's for the Girls - Martina McBride
I'd Do Anything for Love (But I Won't Do That) - Meat Loaf
Rock and Roll Drems Come Through - Meat Loaf
Out of the Frying Pan and Into the Fire - Meat Loaf
I Run For Life - Melissa Etheridge
B**** - Meredith Brooks
ABC - Jackson 5
Bad - Michael Jackson
Beat It - Michael Jackson
Billie Jean - Michael Jackson
Black of White - Michael Jackson
Don't Stop Till You Get Enough - Michael Jackson
Southside - Moby & Gwen Stefani
Unwritten - Natasha Bedingfield
Get the Party Started - Pink
Don't Let Me Get Me - Pink
Just Like a Pill - Pink
Trouble - Pink
Who Knew - Pink
So What - Pink
F***in' Perfect - Pink
18 Wheeler - Pink
Jump (for my love) - Pointer Sisters
It Takes Two - Rob Base and DJ E
Don't Leave Me This Way - Thelma Houston
I Won't Back Down - Tom Petty and the Heartbreakers
Runnin' Down a Dream - Tom Petty and the Heartbreakers
Yeah! - Usher, Lil Jon & Ludacris
Wake Me Up Before You Go Go - Wham!
I Wanna Dance with Somebody - Whitney Houston
Gettin' Jiggy with It - Will Smith

Wow, thanks so much Laneyy and Snoofie!!! Lots of good ideas to add to my playlist- thanks for sharing!

I plan to just put on the christian radio station- does that count?

I'm thinking you can probably tell how old people are by the music they exercise to. Here's one of my run/walk playlists:

Twist and Shout - The Beatles
I Can’t Get No Satisfaction - The Rolling Stones
Don’t Fear the Reaper - Blue Oyster Cult
On the Dark Side - Eddie and the Cruisers
Masquerade - Berlin
Rebel Yell - Billy Idol
Tequila - The Champs
White Rabbit - Jefferson Airplane
The Long Way Around - Dixie Chicks
Break on Through - The Doors
Layla - Eric Clapton
If Not for You - George Harrison
Head over Heals - The Go-Gos
The Heat is On - Glen Frey
Perfect Day - Hoku
La Bamba - Los Lobos
Good Lovin’ - The Rascals
Mama Told Me Not to Come - 3 Dog Night
The Lion Sleeps Tonight - The Tokens
Crimson and Clover - Tommy James

Alenna - you'd think that, but I'm 24 and half of your playlist is on my playlist.

I'm often changing .... and this list is not very well connected in anyway .... but here is mine at the minute .... will definately try some songs I've never heard of listed above ...

Born this Way - Lady Gaga
Whenever, Wherever - Shakira
The House is Rockin' - Stevie Ray Vaughan
She Bangs the Drums - The Stone Roses
Common People - Pulp
Go West - Pet Shop Boys
Because the Night - Patti Smith Group
Into the Groove - Madonna
Somebody Told Me - The Killers
Drop the Pilot - Joan Armatrading
Laid - James
Hiphopoptamus vs Rhymenceros- Flight of the Concords
Some Girls - Racey
Just a little Bit - Kids of 88
Stronger - Workout mix
Holding Out for a Hero - Bonnie Tyler
Grace Kelly - Mika
Hot 'n' Cold - Katy Perry
Super Freak - Rick James
Smack My ***** Up - Prodigy

wow, i'm gunna have to take some of your suggestions!
here's some of my faves.

Ke$ha - Kiss & Tell, Grow A Pear...any of her songs really
Drake - Forever
Eminem - Not Afraid, Till I Collapse.. a lot of his songs too

Some I didn't see that I listen to a lot are:

Keri Hilson- Pretty Girl Rock
Travie McCoy- We'll Be All Right
Kesha- Blow
Beenie Man- Dude
Katy Perry- ET
Waka Flocka- No Hands
The Veronicas- Untouched
David Guetta- Who's That Chick

and I'm sure no one will be with me on this I have another playlist that is all Bachata music. I LOVE spanish music and it's the perfect tempo...

Okay, I have some more to add:

1. Lose my Breath- Destiny's Child
2. Rolling in the deep- Adele
3. Higher- Taio Cruz
4. Tik Tok- Kesha
5. Till the World Ends- Britney Spears
6. Better off alone- Alice Deejay
7. I see right through to you- DJ Encore
8. Not gonna get us- T.A.T.U.
9. All the things she said- T.A.T.U.
10. Whataya want from me- Adam Lambert

Set Fire to the Rain - Adelle
Higher - Taio Cruz
Club Can't Handle Me - Flo Rida
Maroon 5
Fall Out Boy
Barenaked Ladies
No One Gets Left Behind - Five Finger Death Punch
Who Wants to Be Alone - Tiesto (feat. Nelly Furtado)
Three Days Grace
Shadows - Red
Invincible - Adelitas Way
Now I'm That B!tch - Livvi Franc
She Wolf - Shakira
Going Down - Sick Puppies
Stereo Love - Edward Maya

Ooo, this is fun! Some of my favorites are (and I also warn that these are all over the place, lol):
1. Mamma Mia - ABBA
2. Gives You **** - All American Rejects
3. Potential Break-Up Song - Aly & AJ
4. Single Ladies - Beyonce
5. I Gotta Feeling - Black Eyed Peas
6. Till The World Ends - Britney Spears
7. Forget You - Cee Lo Green
8. Give a Little - Hanson
9. Watch Me Shine - Joanna Pacitti
10. Peacock - Katy Perry
11. Giddy On Up - Laura Bell Bundy
12. Harder To Breathe - Maroon 5
13. Black or White - Michael Jackson
14. Uprising - Muse
15. Animal - Neon Trees
16. Raise Your Glass - Pink
17. Love Like Woe - The Ready Set
18. S&M - Rihanna
19. Double Vision - 3OH!3
20. For anyone who likes musicals like I do, I love listening to stuff from Rock of Ages or In The Heights as well

My favorites right now:
Riot - Three Days Grace
Rock is Dead - Marilyn Manson
One Step Closer - Linkin Park
Alive - Pearl Jam
All Summer Long - Kid Rock

Oh, found a few more I really like:
Kevin Rudolf - Let It Rock (Love this one!)
Womanizer- Britney Spears
Chris Brown – Forever