"knee deep" is a song recorded by american country music group zac brown band with jimmy buffett. it was released in may 2011 as the third single from the zac brown band's second major-label album, 2010's "you get what you give". it reached number-one on the u.s. "billboard" hot country songs chart for one week in august 2011. the song is about laying back and having no worries (some of the lyrics are: "only worry in the world is the tide gonna reach my chair.")