There are several shows along this line within Branson to see. My husband and I being just shy of 30 years of age found that we didn't know quite as many of the songs as I would have anticipated - probably about half of them. Most likely we would have more enjoyed the show with the ‘60s music instead just because we'd be more familiar with the music.
That being said, the show was still enjoyable and well done. There were lots of costume changes, and the performance was divided up by theme. I definitely would recommend to anyone who lived through and loved the music of the ‘50s. Little kids who love to dance would probably enjoy the show as well, though I've heard the ‘60s show is more interactive.