This voice here is golden,
Kendrick puts on a number of voices for this song. A ‘golden voice’ generally refers to a radio voice or a deep, powerful voice.
His voice is also making him money, thus his voice is ‘golden’.
Also a possible reference to Goldenvoice, the LA-based concert promotions/planning company that has put on Kendrick Lamar’s shows.
As Kendrick often does, there’s also a homophone hidden under the surface of this line. “Golden,” as Kendrick says it, sounds just like “goading” (annoying someone to provoke a reaction). In the context of “Backseat Freestyle,” which represents a younger Kendrick’s goals and mindset, the multiple voices he employs throughout the song goad his older self on to write some of the more serious material in the latter part of the album. Good kid’s growing up.
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