To celebrate putting up Kim Kardashian-type numbers on Twitter, J. Cole gifted “Grew Up Fast” to his followers last night, a track that serves as a brief retrospective of a now fully blossomed career. Like “Otis," from his Roc Nation boss Jay-Z, “Grew Up Fast” forgoes any “techno” sounds in favor of a looped-soul sample from the Temptations' David Ruffins' "Double Cross," escorted by a clean set of kicks and snares. Unlike the Throne, though, Cole chooses to defer to fantasy instead of embellishing it, taking a moment to reset his career goals as he puts his success into perspective. Edging toward cocky, he refers to himself as “more Biggy, you more Diggy,” but then explains how he would be willing to take Russell Simmons' son under his wing, in the end showing more graciousness than attitude. The 27-year-old rapper seems perfectly content with where he stands, and this note from Jay-Z might harp on that sentiment perfectly.