This song was written as a reminder to show affection to the people closest to you, as you never know when it will be too late. Singer Gary LeVox told CMT News that this track could be interpreted as a message of support towards the gay community too. He explained: "We actually have some gay people that work with us, and we have a lot of friends that are gay, too, and I know that this song has inspired them. I know that coming out was tough on their parents and on them and the whole entire family. For a long time, some of them didn't get to hear 'I love you' from their dads or be accepted in that way. … It's helped a lot of our friends."
Guitarist Joe Don Rooney added: "That's what's cool about our music. You can interpret (it like) that. If you get that - it's perfect. If you are someone who's gay or someone who's straight, you still feel something from the song, and that's what we want."
"Thinking About You" was the ninth track from Calvin Harris' 18 Months album to enter the UK singles Top 10. No other artist has obtained so many hits from one LP - Michael Jackson was the previous record holder with seven Top 10 tunes from both his Bad and Dangerous sets.