Her songs might not embody the epitome of healthy living, but it turns out Ke$ha is the new queen of U.S. workout playlists. (Note: We at Greatist do not advocate brushing your teeth with a bottle of Jack Daniels.) Data released this week from online music giant Spotify showed that out of the 2.8 million workout playlists we rocked out to in January, Ke$ha's "Die Young" appeared more often than any other song. While not exactly a Grammy frontrunner, "Die Young" has got a heart-pumping beat that can certainly help during tough interval segments.Will.i.am's "Scream & Shout" and the Macklemore & Ryan Lewis collaboration "Thrift Shop" took the #2 and #3 spots, respectively, while "Gangnam Style" held on for a top 10 appearance six months after becoming a YouTube sensation (personally, we're ready to let that one fade out at this point). Overall, Spotify found that women were more likely to sweat to Ke$ha, David Guetta, and Swedish House Mafia, while men tended to prefer tracks by Kanye, Jay-Z, and Eminem. (Fun Fact: Eminem's "Till I Collapse" took the top spot among men more than a decade after its release; it also powered yours truly while writing this particular piece.)Spotify launched in 2008 and became available in the U.S. in 2011. Rather than require users pay, Spotify offered up a massive library of music for free (silly ads aside). To kick off their workout presence, the company enlisted the help of First Lady Michelle Obama and trainer extraordinaire Jackie Warner, who both created heart-pumping playlists. Mrs. Obama has been fighting the obesity epidemic for a long while; now we know she gets her sweat on to "Signed, Sealed, Delivered" by Stevie Wonder, "Love Song" by Sara Bareilles, and "Unbreakable" by Firefight. The combined top 10 for both sexes is below.

  • "Die Young" by Ke$ha
  • "Scream & Shout" by will.i.am
  • "Thrift Shop" by Macklemore & Ryan Lewis
  • "Don't You Worry Child" by Swedish House Mafia
  • "Sweet Nothing" by Calvin Harris
  • "I Cry" by Flo Rida
  • "Clique" by Kanye West
  • "Titanium" by David Guetta
  • "Gangnam Style" by Psy
  • "Locked Out Of Heaven" by Bruno Mars

You can get the full playlist by clicking here. [Note: You'll need to have Spotify already on your computer to access the playlist.] Did any of your gym favorites make the list? Let us know in the comments below or tweet general musical rantings for the author @d_tao.