The RIAA awards diamond plaques to singles and albums that reach 10 times platinum status. That once was the equivalent of selling 10 million songs or albums but has changed since the RIAA began incorporating streaming from YouTube, Spotify and other digital music services.
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"Cruise" has a popular remix featuring Nelly. Nielsen Music says it has sold 7.48 million tracks. The band's record label, Big Machine Records, says the song has been streamed more than 155 million times.
Katy Perry, Justin Bieber and Imagine Dragons also have diamond songs.