The moment a mystery Los Angeles woman with an angelic singing voice was caught serenading metro riders has touched the hearts of thousands.

In video posted by the Los Angeles Police Department on Twitter, a woman lets her astounding operatic vocals echo across the station.

The post read: '4 million people call LA home. 4 million stories. 4 million voices...sometimes you just have to stop and listen to one, to hear something beautiful.'

The pig-tailed woman is pulling a large cart and carrying three bags as she effortlessly shifts octaves as she reportedly sings Puccini aria.

A unidentified woman (pictured) was captured on video beautifully singing opera inside a Los Angeles metro station

The video was captured by an LAPD officer working at the Wilshire and Normandie Purple Line Station, according to the Los Angeles Times.

The two had a casual encounter before the woman began to sweetly sing as the officer recorded.

Sgt. Hector Guzman told the publication: 'It was powerful the first time we saw it, and every time we see it again, it’s still powerful.'

'The message for us was simple: Remind ourselves to take a moment to look around and listen.'

The Los Angeles Police Department shared the amazing video on their Twitter account and it quickly went viral (pictured)

The officer who shot the viral video has declined to take interviews, Guzman explained, because the focus should be on the woman.

Metro spokesperson Jose Ubaldo revealed they company has never encountered the secret singer before.

Ubaldo said: 'That was surprising to us. We don’t know who this person is.'

While the identity of the woman is yet to be discovered, Los Angeles residents on Twitter sounded off in the comments about their encounters with the songstress.

A police officer from the LAPD recorded the video after he and the woman (pictured) had a casual encounter during his shift

One woman said: 'I’ve seen her for years on the Metro. I heard her once singing “Ave Maria” and thought it was a radio at first. Everyone has a story...this woman does too.'

Another said: 'I had notice this lady several times while riding Los Angeles Metro train and seeing her feeding birds on the streets.'

'Never in a million years I would had imaging she has such beautiful voice...'

One woman says she's seen the woman for years and recalls a rendition of 'Ave Maria' that was so good she assumed it was the radio

This user, who had noticed the woman 'several' times, was shocked by how well the mystery woman can sing

Many users are hoping the viral video will help the woman reach stardom and reach a better life

People on social media have begun to rally around her.

Other users hoped this viral video would help catapult the woman into stardom.

'Wow, what a voice,' one user said, 'I hope this goes viral and becomes her ticket to a better life.'

In the Twitter posts comments, users have been tagging TV shows like 'The Ellen Show', 'America's Got Talent' and even A&R executive Simone Cowell.

The original post garnered more than 154,000 views.