What is that song they play on commercial has something to do with Heaven?

The song you may be referring to is "Welcome to Heaven" by Phil Wickham.

Here's an excerpt of the lyrics:

Welcome to heaven

Where mercy will find you

And grace is the reason

And mercy will find you, mercy will find you

Welcome to heaven

Let all who were lonely

Find freedom and healing

This grace is your freedom,

this grace is your healing

Here, in Your presence all chains are now broken

Welcome home to freedom

All is forgiven