"Rude Boy" is a song by Barbadian singer Rihanna, taken from her fourth studio album, Rated R (2009), that was released as the third single from the album on February 19, 2010, through Def Jam. It was written by Mikkel S. Eriksen and Tor Erik Hermansen under their stage name Stargate, Ester Dean, Makeba Riddick, Rob Swire and Rihanna, and produced by Stargate and Swire. "Rude Boy" is an up-tempo song and incorporates elements of ragamuffin, pop and R&B.
The song received mixed to positive reviews from critics; some called it is the highlight of the album, but others criticized Rihanna's "monotone" and "icy" vocal performance. "Rude Boy" peaked at number one the US Billboard Hot 100 in its fourth week for five consecutive weeks, and was Rihanna's sixth US number one single.
