Frozen director Jennifer Lee was recently interviewed in The Hollywood Reporter, and she offered a funny anecdote about Disney’s most notorious earworm, “Let It Go.” She explained to THR, “A year ago, I’d meet people who, when they found out who I was, they’d say, ‘Oh, we love the songs! We sing them all the time.’” The only thing is, it’s been months, and those parents haven’t been able to stop singing it for a single second. “I’ve gone from, ‘Thank you,’ to, ‘Sorry!'” Lee shouldn’t feel too bad though: Frozen recently became the fifth highest-grossing movie ever …