"Chatti Ya Denyi" by Fairouz

This song, (which is sometimes transliterated into English as "Shati ya donya") is one of the songs I always associate with spring.  Performed by Fairouz, who has one of the most distinctive and beautiful voices in popular Arabic music, it is a call for rain, for growth, but also a song about a burgeoning love. 

English translations of the lyrics can be found at Shira.net (thank you to Shira and to her contributors!)

You can purchase the song from Amazon, or via iTunes.