It kind of looks like any other loving birthday post. Early on Thursday morning (Sept. 21), Tim McGraw penned a tribute to his wife Faith Hill on his Instagram. He gushed over her beauty, their daughters and said that he is truly in love with her more every day. For a woman who probably has everything, I'm guessing that post was the best gift he could've given her.

At the end, McGraw wrote: "Can't wait to see what 'the rest of our life' has in store for us."

And to anyone following their country careers closely, that is an obvious #TBT to one of the first duets they shared as husband and wife.

It's from Hill's 1998 Faith album, and is a lyric from their duet, "Just to Hear You Say That You Love Me." Technically, it was not their first duet, because that would've been "It's Your Love," off McGraw's 1997 album Everywhere.