Justin Bieber's mother shares Father's Day tribute to superstar son as he awaits birth of first child with wife Hailey: 'You're gonna be the best daddy ever!'

Pattie Mallette is getting a jump on the Father's Day tributes for her superstar son, Justin Bieber.

On Sunday, the proud mother took to her Instagram page to toast her boy as a soon-to-be dad, which is the first time since the Love Yourself star and his wife Hailey announced she's pregnant with their first child a month ago.

'Happy Father’s Day Justin. You've always wanted to be a dad ever since I can remember. You have so much love to give,' Mallette, 49, gushed in the caption, alongside a series of snaps showing the excited couple. 'You're gonna be the best daddy ever. You already are. LOVE YOU!!'

The post shows Hailey showcasing her baby bump in three different photos, two of which include Justin showering his wife with love.

The cover photo, showing Hailey in a white lace gown, was taken from the photoshoot used for the announcement of their pregnancy that was posted on May 9.

Justin Bieber's mother Patti Mallette shared a Father's Day tribute to her superstar son, one moth after the singer and his wife Hailey announced they were expecting their fist child

Justin can be seen with his arms wrapped around is wife's waist as the camera focuses in on her baby bump.

There's also an image of the happy couple sharing a passionate kiss while the soon-to-be mom has her shirt open to show off her pregnancy.

Lastly, Mallette posted a photo of Hailey all decked out in a white ensemble that highlighted her burgeoning belly in a mirror selfie.

On her Instagram Stories, Bieber's mother reposted the image of the couple kissing with Hailey's baby bump on display, writing, 'Happy Father's Day my son. Soooo excited.'

She also shared one of Hailey's photos where she's posing with her t-shirt lifted up to showcase her stomach with the caption: 'Beautiful mama.'

After the couple found out they were to be first-time parents, the celebration turned out to be 'just the best day for them,' an insider told People.

'Everyone is excited for them,' the source continued. 'They will be great parents, and Justin will be super involved. This will be the next important project for him. He's so excited to raise his baby.

That person added, 'They have a name that they think is perfect. They're also starting to decorate a nursery. They can't wait to meet the baby.'

The cover photo, showing Hailey in a white lace gown, was taken from the photoshoot used for the announcement of their pregnancy that was posted on May 9

The pop star's mother told her son he's 'gonna be the best daddy ever'

Mallette's last Father's Day picture shows Hailey with her baby bump apparent in a white outfit

On her Instagram Stories, Bieber's mother reposted the image of the couple kissing with Hailey's baby bump on display, writing, 'Happy Father's Day my son. Soooo excited'

The soon-to-be grandmother also shared one of Hailey's photos where she's posing with her t-shirt lifted up to showcase her stomach with the caption: 'Beautiful mama'

A source told People that the couple have a name picked out that they think is perfect

It’s not been confirmed how far along Hailey is, but according to TMZ she's just over six months pregnant, so their pending bundle of joy could arrive at the end of summer, possibly August or September.

The couple have quite the shared history that dates back to when they briefly dated from December 2015 to January 2016 before splitting.

They would ultimately reconcile in June 2018 and eventually get married in a courthouse ceremony three months later, in September of thta same year.

The couple decided to hold an extravagant wedding party for their family and friends in South Carolina on September 2019.