5. Ariana Grande Feat. Iggy Azalea—Problem

When this song first came out, it was a bit overplayed.

But now that your brain has had a break from it, you can appreciate all it has to offer.

Ariana Grande’s beautiful voice combined with the sick beat make Problem the ideal song to distract you from your run just long enough to power through the last uphill stretch.2

LL Cool J—Mama Said Knock You out
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