What is the title of song Julia Roberts puts on in apartment when he comes back from his work and sees Vivian sitting naked at table wearing a tie?

The song Julia Roberts puts on in the apartment in "Pretty Woman" when she's wearing a tie is "The Sound of Music" by Julie Andrews.

It's a pivotal moment in the film, as it highlights Vivian's transformation and her newfound confidence. The choice of song is also humorous, as it contrasts with Vivian's previous life as a streetwalker.