"Rat in Mi Kitchen" is a song and single written and performed by British group, UB40. It features Herb Alpert on trumpet and was the sixth track on their album Rat in the Kitchen. Released in 1986, it reached Number 12 on the UK charts in 1987, staying for seven weeks.

Based on this passage, who sang theres a rat in my kitchen? Let's think fast. Stream of consciousness:
The relevant sentence in the passage is: "Rat in Mi Kitchen" is a song and single written and performed by British group, UB40. So the final answer is UB40.