Premise: Umbrella (song) . At the 2008 Grammy Awards , `` Umbrella '' also earned Rihanna and Jay Z a Grammy Award for Best Rap/Sung Collaboration in addition to receiving nominations for Record of the Year and Song of the Year . The song serves as the lead single to the album , and was released worldwide on March 29 , 2007 through Def Jam Recordings .
Hypothesis: Umbrella is a recording.
Label: ENTAILMENT