Viral video at the site of Bondi Beach terror memorial leaves Australians speechless

The moment an Aussie man's tribute to the Bondi massacre victims brought tears to mourners' eyes has been caught on camera.  

Matthew Hayes paid his respects to the 15 innocent lives that were lost during Sunday's massacre by breaking out into song in front of the memorial at Bondi Pavilion. 

Singing the iconic 1995 hit I Am Australian, the Sydney-sider united his fellow mourners at the vigil on Thursday in a heart-warming moment.

'I am, you are, we are Australian,' he belted, as other attendees began to sing along to the beloved tune.

What began as a solo soon turned into a choir of voices singing around the ocean of flowers, which had been laid down in memory of those who lost their lives during the tragedy. 

There was not a dry eye at the vigil as people crowded around Matthew and sang along in tribute to the victims of the Bondi massacre.  

Matthew admitted to news.com.au that while he was initially nervous to sing the song, he was 'determined to not sit around helplessly to all the despair around us'.

'I wanted to do something to help reunite us as a country and show that we, as a city, and as a person with a disability myself, that the Disability Community supports the Bondi Beach and Australian Jewish communities, and that they're welcome here and deserve to be safe, just like everyone of all backgrounds and faiths.'

Matthew then revealed that when he was in kindergarten, he was non-verbal. 

Despite being told by doctors that he would never be able to hold a conversation, his school principal didn't give up on him and often handed him the microphone in assemblies to MC.

As part of those assemblies, he and his schoolmates would sing 'I Am Australian', a song that gave him the strength and confidence to overcome his obstacles. 

'The whole song's meaning is that we've come from all the countries of the world, and that we can enjoy our unique culture from our countries of origin, but we all have  one thing in common - which is being Australian.'

Fifteen innocent people – including a 10-year-old girl – were killed during Australia's second worst mass shooting on Sunday at a Jewish Hanukkah celebration.

Forty others have been left injured.

The alleged gunmen were quickly identified as father Sajid Akram, 50, and his son, Naveed Akram, 24.

Sajid was shot dead by police, while Naveed is recovering from bullet wounds in hospital.

He has been charged with 59 offences.

Other victims include British-born Chabad Rabbi Eli Schlanger, 41, Rabbi Yaakov Levitan, 39, French national Dan Elkayam, 27, Holocaust survivor Alex Kleytman, beloved husband and father Tibor Weitzen, Wellington Street synagogue assistant Reuven Morrison, Slovak citizen Marika Pogany, 82, retired NSW Police detective sergeant Peter Meagher, Edith Brutman and Boris Gurman, 69, and his wife Sofia, 61.