With the summer solstice arriving June 21, it's time to start thinking about what really makes summer complete: the tunes. Check out Billboard's list of the top 30 charting songs with summer-specific themes ranked based on each track's performance on the Billboard Hot 100 chart from 1958 through 2014. Songs are ranked based on an inverse point system, with weeks at No. 1 earning the greatest value and weeks at No. 100 earning the least.