"There Must Be an Angel (Playing with My Heart)" is a 1985 song written and performed by the British musical duo Eurythmics. Released as the second single from their fifth album Be Yourself Tonight, the song features a harmonica solo by the American musician Stevie Wonder. The song became a worldwide success; most notably in Ireland, Norway and the United Kingdom, where it became the duo's only chart-topping single to date.

Answer this question: who sang must be talking to an angel? Let's think fast. Stream of consciousness:
The relevant information is: "There Must Be an Angel (Playing with My Heart)" is a 1985 song written and performed by the British musical duo Eurythmics. So the final answer is the British musical duo Eurythmics.