Nas released Street's Disciple on November 30, 2004 - a sprawling double album that delved deeply into various issues, most notably politics and his impending marriage to Kelis. The two-sided "Thief's Theme"/"You Know My Style" single dropped in summer 2004, several months before the album's release, and was followed that fall by the proper lead single "Bridging the Gap."
Also, the then new kid on the block 50 Cent took a swipe at Nas on "Piggy Bank," a call-out song on The Massacre (2005), further bringing the veteran rapper's status into question. Read more about Nas’ life and career here.