READ MORE: Michael Buble, 46, expecting his fourth child with wife as she showcases baby bump"You finally arrived to our lives with your 3,8 kg!!! Thanks God for this infinite blessing, we love you!! Noah, Elias, Vida and your mom and dad."Sharing in on their exciting news fans rushed to the comment section to congratulate the pair on their arrival.One social media user wrote: "Absolutely huge congratulations." Another excited fan penned: "Congratulations! A bunch of blessings."Meanwhile a third said: "Congratulations and welcome to the world."As well as their new born who they've decided to name Cielo, the happy couple also parents to children Noah, Vida and Elias.Singer Michael and his Argentine actress wife Luisana became engaged in November 2009 and tied the knot in March 2011 in Buenos Aires.Michael also co-wrote the hit single "Haven't Met You Yet" for Lopilato while they were dating and she appeared in his music video for the chart-topping song. In a recent interview, the 46 year old hit maker shared insight into family life and admitted that their is a lot of noise in his household at the moment.Radio host Sofie Formic said to Michael: "Congratulations on a number four by the way.