The Muse rocker "got his hands dirty" at the birth of Bingham in July 2011, even though his fiancee Kate Hudson - who has eight-year-old son Ryder from a previous marriage to Chris Robinson - didn`t want him to be so close during her labour.
Matt told Q magazine: "Oh yeah, I was there at the birth. I was watching the whole thing. I was holding her leg up when she pushed him out. She didn`t want me to watch but I was in there, getting my hands dirty, so to speak."
The 34-year-old singer also admitted joining the band when he was a teenager stopped him from going off the rails.
He said: "My teenage years were pretty chaotic. By 17, 18, I was living with a close friend, who became a drug dealer and went to prison.
"Looking back, I was very close to slipping down that road. Being in the band was very cathartic for me."
And the `Survival` hitmaker says he feels more at ease on stage than anywhere else.
He said: "I actually feel more relaxed on stage than anywhere else. There`s so much kerfuffle and faff building up to it but then you just let your hair down and enjoy it."