for a scene in the last four episodes of This Is Us, possibly to appear younger. (Which he totally does, by the way. Jess Mariano, is that you?!?) The Redditor suggests that perhaps the finale will be a parallel to when Jack and Rebecca first met — and it could all revolve around the song "Moonshadow."
The last 4 episodes of This Is Us will go places we've never been before. Here's a taste. pic.twitter.com/zZIfPWDg1N— Ken Olin (@kenolin1) February 9, 2017
StarsHollow1 points out that there's already one big clue in the show to suggest ]"Moonshadow" is Jack and Rebecca's couple tune, and possibly even facilitated their introduction. (Who wouldn't fall a little bit in love with Rebecca after hearing her sing?) This Is Us showed Jack giving Rebecca a moon-shaped necklace, one that she still wears to this day.
There's also a huge real-world reason why "Moonshadow" could appear on This Is Us. Though the track was originally recorded by Roger Whittaker in 1967, and then again by Cat Stevens in 1971, the latest major recording of the song was by none other than Mandy Moore herself. She recorded the track back in 2003. Perhaps the song is as special to Moore as it could be to Jack and Rebecca?
It certainly could be... but we'll have to wait until the finale airs on March 14 to find out.