If you had the chance to go back in time and tell your past self something, do you know what you'd say?

We all have things in our pasts that we aren't necessarily proud of, and not all of us would give our teen selves glowing reviews. We're sure that if we had the chance to go back and talk to our younger selves, we'd have a million things to say -- not that our past selves would bother listening, but it's the thought that counts, right?

When we heard about the time traveling characters in the upcoming movie 'Project Almanac' (in theaters on Jan. 30), we decided to poll pop artists to find out what kind of advice they would give to their past selves if they had the chance to go back in time. The answers range from the totally deep and introspective (not to mention wise beyond her years) advice from Taylor Swift to the silly (but totally logical) advice from Alec Benjamin. An overarching theme seems to be one of trusting your gut and yourself, and to not let other people's opinions of you fester in your brain and ruin your perception of yourself. Very solid advice, and we have to admit that we agree.

Flip through the gallery above to see what artists like Taylor, Shawn Mendes, Jamie Lynn Spears, Rixton, Dev and many more told PopCrush!