> She and I are in different cities

> She and I are in a different city

Which sentence is correct? I intuitively chose the first one until I saw the [lyrics][1] of the song 'Good as Gold' 

> My heart your heart run a different race

> My voice your voice sing a different song


  [1]: https://www.google.com/search?newwindow=1&rlz=1C1CHBF_enSG763SG763&biw=1517&bih=694&sxsrf=ALeKk01dH98dbyYjTJyidJdmEukzhBCAmg%3A1590592730710&ei=2oTOXr3zKoOnoAS3-ZK4DA&q=good%20as%20gold%20natty%20reeves%20lyrics&oq=good%20as%20gold%20nat&gs_lcp=CgZwc3ktYWIQAxgBMgIIADICCAAyBggAEBYQHjIGCAAQFhAeMgYIABAWEB46BAgAEEc6BAgjECc6BQgAEJECOggIABCRAhCLAzoFCAAQiwM6BwgjEOoCECc6BAgAEEM6BwgAEEMQiwM6CggAEBQQhwIQiwM6BAgAEAo6CAgAEBYQChAeOgcIABAUEIcCUOmaBliR6AZg3foGaARwA3gAgAHHAogB8COSAQYyLTE3LjGYAQCgAQGqAQdnd3Mtd2l6sAEKuAEC&sclient=psy-ab