Here is a song from 2015:
It's "Fight Song" by Rachel Platten, released in February of the aforementioned year from Wildfire, her debut album on a major label. I love the positivity of the track and its inspiring message - for a person to take control of their own life and do well in the face of any adversity. It's aided by Platten having an excellent singing voice.
"Fight Song" has been featured prominently during Secretary of State Hillary Clinton's campaign events for her current run for president, including at the Democratic National Convention.