The "All Of Me" hitmaker said things are different for the couple, who welcomed Luna in April, now because of the "all-encompassing" responsibility of having a child, reported Entertainment Tonight.
"Well, it's all-encompassing too - it's, you have to spend every moment even when you are not with (Luna) thinking about who is with them, and what's happening with them, and making sure that everything is, you know, comfortable for them," Legend said.
"Being married is not the same as having a kid because being married to another adult who can take care of themselves to a degree is different than having a kid that is completely dependent on you. So, it definitely makes you realise a heightened level of responsibility and it makes you realise that there is a lot of work to be doing, and you realise what your work is for.