Warning - I got an odd music taste
but here are some songs i HAVE TO HAVE on my iPOD all the time
R.I.O. - Shine on
Katy Perry - Hot n' Cold
Lady Gaga - Just Dance
M Pokora - Dangerous
Pink - So what?
Flo Rida - Right round
Franz Ferdinand - Do you want to
MGMT - Electric Feel
Lady Gaga - Starstruck
Carolina Liar - I'm Not Over
Ciara - Love Sex Magic
Death Cab For Cutie - Grapevine Fires
Jack's Mannequin - The Resolution
Kraak & Smaak - Squeeze Me
Kid Cudi - Day & Night
Obadiah Parker - Hey Ya!
Santagold - Shove It
Silversun Pickups - Panic Switch
I have a ton more but that is my current workout playlist!
Love it when you call - The Feeling
You and your hand - Pink
Control - Metro Station
Shake It - Metro Station
It's not fair - Lily Allen
I want you to want me - Letters to Cleo
Africa - Karl Wolf
Blame It - Jamie Foxx
Boom Boom Pow - Black Eyed Peas
For working out (and I instruct & train part-time), I use pre-mixed downloads from mixers who work specifically for instructors. So, the music is pre-mixed with consistent beats per minute and often enhanced sounds and effects. Edited to add: they also run continuously; there are no fades in or out where you hear track breaks between songs; they are mixed for one song to run/blend right into the next.