You try getting Kendrick Perkins to sing about jeeps. Heck, try getting Kendrick Perkins to do anything he doesn’t want to do — shave his goatee, smile, wear less adornments on his shirt, whatever — and I’m guessing you’ll have about as much success as the rest of the Thunder had trying to get him to sing. Ever since he turned 50, he’s been such a curmudgeon.