At year’s end, Kendrick Lamar’s album good kid, m.A.A.d city posed a serious threat to Frank Ocean’s Channel Orange for Best Album of 2012. The album was universally hailed by critics and fans alike.  We had been immune to Lamar’s allure until a couple of fans held a “good kid” symposium at our house over the holidays (thanks Derp and Hazznah).  And at long last we got it.  And we got it more still when Lamar appeared on Saturday Night Live as musical guest this weekend.  See what all of the fuss was about below as Lamar and band slay on the self-possessed call-to-consciousness (literally) of Swimming Pools (Drank) and then Poetic Justice from the album.  The former, in particular, was stunning.