Welcome to Music Friday when we bring you new tunes with jewelry, gemstones or precious metals in the title or lyrics. Today, Swedish singer-songwriter Sophia Somajo navigates a toxic love affair in "Diamond Heart," her 2018 collaboration with Norwegian DJ Alan Walker.

In the song, the 34-year-old Somajo tells her boyfriend that only a diamond heart can protect her from the "sweet grief" he brings to the relationship.

She sings, "Yeah if I was bulletproof / I’d love you black and blue / If I was solid like a jewel / If I had a diamond heart / oh oh / I’d give you all my love / If I was unbreakable."

In the end, she acknowledges that her heart will never be as solid as a precious stone so she will have to let him go: "Goodbye my love / you are everything my dreams are made of / you’ll be Prince and I’m the crying dove / If I only were unbreakable."

Somajo, who is also known as Soso, delivers a powerful performance, with a range and vocal style reminiscent of Aussie superstar Sia. The official video for the song has been viewed on YouTube more than 153 million times.

"Diamond Heart" appears as the 13th track from Different World, Walker's debut studio album. The song, which is the third and final chapter of the DJ's trilogy called the "World of Walker," went to #1 in Norway and charted in Austria, Germany, Netherlands and Sweden.

The official video for "Diamond Heart" depicts fantastical landscapes in a dystopian world. The video was actually shot on location in Iceland and the United Arab Emirates.

Walker, who will turn 22 tomorrow, is best known for his 2015 breakout hit, "Faded," which earned diamond and multi-platinum certifications in more than 10 countries, including the US and the UK.

Please check out the video of Somajo's memorable performance of "Diamond Heart." The lyrics are below if you'd like to sing along...

"Diamond Heart"
Written by Alan Walker, Thomas Troelsen, Kristoffer Haugen, Edward Normann, Anders Freen, Gunnar Pettersen, Yann Bargain, Victor Verpillat, Fredrik Olsen and Sophia Somajo. Performed by Sophia Somajo.

Hello sweet grief
I know you will be the death of me
feel like the morning after ecstasy
I am drowning in an endless sea

Hello old friend
here’s the misery that knows no end
so I am doing everything I can
to make sure I never love again

I wish that I did not know
where all broken lovers go
I wish that my heart was made of stone

Yeah if I was bulletproof
I’d love you black and blue
If I was solid like a jewel

If I had a diamond heart
oh oh
I’d give you all my love
If I was unbreakable

If I had a diamond heart
oh oh
You could shoot me with a gun of gold
If I was unbreakable

I’d walk straight through the bullet
bendin’ like a tulip
blue-eyed and foolish
never mind the bruises
into the fire
breakin’ through the wires
give you all I’ve got

If I had a diamond heart
I’d walk straight through the dagger
never break the pattern
diamonds don’t shatter
beautiful and battered
into the poison
cry you an ocean
give you all I’ve got

If I had a diamond heart

Goodbye, so long
I don’t know if this is right or wrong
am I giving up where I belong?
’cause every station is playing our song