A video of a little boy crying tears of joy as he found out he was going to be a big brother has gone viral online. The clip was shared on Instagram by ViralHog. So, a clip of a little boy's reaction as he got to know that he was going to become a big brother has gone viral online. He didn't realize what was happening till then. His happiness was simply infectious and while crying tears of joy, the little boy hugged his mother. Another user commented, "I am crying, why am I crying?" Source: IndiaToday