It changes all the time, but here's what my "Workout" playlist looks like today:
Just Dance - Lady Gaga (This one's popular!)
Click Flash - Ciara (The Carrie Bradshaw-Vogue-Bridal-Coture-Photo-Shoot song)
Dangerous - Elijah Kelley
If I Never See Your Face Again - Maroon 5 / Rihanna
Shake It - Metro Station
Burnin' Up - Jonas Brothers
One Step at a Time - Jordin Sparks
That's What You Get - Paramore
Beat It - Fall Out Boy feat. John Mayer
See You Again - Miley Cyrus
Yeah! - Usher
Stay Fly - Three 6 Mafia
Chop Me Up - Justin Timberlake (feat Three 6 Mafia)
My Humps - Black Eyed Peas
I also like to cool down with my Disney Favorites playlist. It motivates me to envision looking fantastic in my Disney wedding photos! It's a little vain, but it works!