9. Roar – Katy Perry
She sure does have “the eye of the tiger” and that’s what makes Katy Perry’s “Roar” one to sing along to. With an inspirational story on her rise in the music industry, Katy speaks to overcoming many obstacles in her songs and keeping a positive outlook. This single was Perry’s eighth non-consecutive number one hit on the Billboards Hot 100 list and was also an international success being in the top five for Canada, Ireland, New Zealand and United Kingdom. Get it, Katy!