20 Biggest Songs of the Summer: The 2010s (So Far)

European imports and Katy Perry dominate five years of summer

Rihanna, "Where Have You Been"

After releasing an album every summer early in her career, Rihanna has recently taken to dropping albums in November. But her singles campaigns always last a year, and late 2011's Talk That Talk kept spinning off hits well into the next summer, with Calvin Harris and Dr. Luke helping propel the clubby fifth single "Where Have You Been" into the Top 10.