Platinum-selling, Grammy-nominated rapper Kendrick Lamar is one of the rare artists who has achieved critical and commercial success while earning the respect and support of those who inspired him. A native of Compton, California, Lamar originally rapped as K. Dot and released a series of mixtapes under that name. Youngest Head Nigga in Charge (2003), issued when he was only 16 years old, caught the attention of Top Dawg Entertainment and led to a long-term association that helped raise the rapper's profile. Training Day (2005) and C4 (2009) also preceded his decision to go by...