Here are 5 of my fav's -
1 - "This Is How a Heart Breaks" by Rob Thomas
2 - "Mercy" by Duffy
3 - "Leavin' " by Jesse McCartney
4 - "Say" by John Mayer
5 - "You Can't Always Get What You Want" by Rusted Root
"Love Lockdown" by Kanye West
This song is fun to do speed work with when running because it has short bursts of speed as well. So I go at my normal pace and then when the song speeds up I sprint until the song slows down again. Beware that the faster tempo lasts longer at the end so be ready for a strong finish!
How about you? What songs do you like to "get your groove on" with?