What's on your Workout Playlist?

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Just wondering what music y'all have on your workout playlists. Songs to get you pumped up, or help you keep going when you feel too tired to work out? If there's a song I can sing along to then that also keeps me going.. I need some new songs because I am starting to work out for a longer period of time now.
Some songs that I have are (random genres btw lol):

Hungry Like The Wolf - Duran Duran
You & I - Lady GaGa
This City - Patrick Stump
Sweet Child Of Mine - Guns N Roses
Tom Sawyer - Rush
Clumsy - Fergie
Shut Up - Simple Plan
What Makes You Beautiful - One Direction
Wonderwall - Oasis
Bohemian Rhapsody - Queen
Little Bird - Annie Lenox

Another thing, I downloaded an app to get these songs and it was great at first (G tunes) and now it SUCKS and it either doesn't have any older songs, or it says it's that song when it's something completely different. Recommend any good apps to try out?