Guy Sebastian congratulates his youngest brother Jeremy as he welcomes his first child

Guy Sebastian congratulates his youngest brother Jeremy as he welcomes his first child, a son, with wife Emma – and reveals his cute name

Guy Sebastian’s brother has become a father. 

Jeremy Sebastian, 30, the youngest of the Sebastian brothers, announced the birth of his son with wife Emma on Monday. 

In an Instagram post, he shared several sweet photos of the newborn along with a gushing caption revealing the tot’s cute name – Fergus.

Arrival: Guy Sebastian’s brother Jeremy Sebastian, 30, (left) the youngest of the Sebastian brothers, announced the birth of his son with wife Emma (right) on Monday

It read: ‘Welcome earth side my little legend. Fergus Richie Xavier. Well done wife, you nailed it’. 

The photos revealed that little Fergus was born 5.25pm last Thursday and weighed 3460gm. 

Guy was quick to offer his brother congratulations, writing under Jeremy’s Instagram post: ‘I can’t wait to see him’ while Guy’s wife Jules added: ‘The love is deep. My babies had a BABY. Love all 3 of you.’   

Aww! In an Instagram post, he shared several sweet photos of the newborn along with a gushing caption revealing the tot's cute name - Fergus

Aww! In an Instagram post, he shared several sweet photos of the newborn along with a gushing caption revealing the tot’s cute name – Fergus

He wrote: 'Welcome earth side my little legend. Fergus Richie Xavier. Well done wife, you nailed it'

He wrote: ‘Welcome earth side my little legend. Fergus Richie Xavier. Well done wife, you nailed it’

Sweet: The photos revealed that little Fergus was born 5.25pm last Thursday and weighed 3460gm

Sweet: The photos revealed that little Fergus was born 5.25pm last Thursday and weighed 3460gm

Guy was quick to offer his brother congratulations, writing under Jeremy's Instagram post: 'I can't wait to see him' while Guy's wife Jules added: 'The love is deep. My babies had a BABY. Love all 3 of you'

Guy was quick to offer his brother congratulations, writing under Jeremy’s Instagram post: ‘I can’t wait to see him’ while Guy’s wife Jules added: ‘The love is deep. My babies had a BABY. Love all 3 of you’ 

Jeremy and Emma, who are based in Adelaide where the Sebastian family hail from, were married five years ago.   

Guy and Jeremy’s brother Chris Sebastian, 32, first shared the good news with WHO magazine last week.   

‘My younger brother is having a baby tomorrow. ‘So Christmas this year is going to be an extra special one,’ Chris said. 

Happy pair: Jeremy and Emma, who are based in Adelaide where the Sebastian family hail from, were married five years ago

Happy pair: Jeremy and Emma, who are based in Adelaide where the Sebastian family hail from, were married five years ago

Guy and Jeremy's brother Chris Sebastian, 32, shared the good news last week. 'My younger brother is having a baby tomorrow. So Christmas this year is going to be an extra special one,' Chris said. Pictured: The Sebastian brothers. From left: Guy, Jeremy, Chris and Ollie

Guy and Jeremy’s brother Chris Sebastian, 32, shared the good news last week. ‘My younger brother is having a baby tomorrow. So Christmas this year is going to be an extra special one,’ Chris said. Pictured: The Sebastian brothers. From left: Guy, Jeremy, Chris and Ollie

He added of his own family: ‘I’ve got an eight-month old [daughter Ava] so it’s her first Christmas.    

‘And then yeah, Jeremy my younger brother will have a baby tomorrow. That will be the sixth grandchild for Mum and Dad.’    

Chris rose to fame as a singer in his own right by winning The Voice Australia earlier this year. 

The Sebastian brothers have one more in their clan – oldest brother Ollie, 42.  

Close: The Sebastian brothers are known to be close. Pictured with their parents

 Close: The Sebastian brothers are known to be close. Pictured with their parents