Symbol Analysis
Yup, it is supposed to read "the lights is back on" because this is the kind of dialect the speaker is looking to emulate in the poem. So throw those proper grammar rules out the window. The speaker prefers keeping the poem down to earth and true to her own experience.
- Line 3: No need to make things sound proper and formal when we're celebrating those lights being back on. Her speech is relaxed and true to life without any need for correct subject-verb agreement.
- Lines 6, 14: Same goes for the good times that "is" good. Who needs a grammar-check anyway when we're having such a good time?