Wiz Khalifa lays his heart on the line on “Roll Up,” the second single from his major label debut Rolling Papers, dropping March 29. Over synth-heavy production, the Pittsburgh native writes a love letter, pledging his allegiance to his girl. “Whenever you need me, whenever you want me/ You know you can call me, I’ll be there shortly/ Don’t care what your friends say ’cause they don’t know me/ I can be your best friend, and you be my homie,” sings Wiz on the catchy chorus. Feel the good vibrations.