Kimmel told Starr on Thursday that his 7-year-old daughter was excited that the music legend was going to be on the show as her morning alarm is set to a Beatles song.
"What is amazing is that she's seven and she loves the music. Every generation get into the Beatles music. You know why? Because it's great," Starr said.
"I love the music myself and I'm amazed that every generation gets into us," he continued, before praising how Beatles music has been remastered over the years.
The series was complied using over 60 hours of unseen footage that showcases the iconic band recording songs for their final two albums, Abbey Road and Let It Be.
The footage comes from the same video shot for the original Let It Be film from 1970, which was directed by Michael Lindsay-Hogg. Peter Jackson is handling the new documentary series.
"I had a lot of talks with Peter Jackson because I didn't actually like the original one because it was very dark. Not even dark, it was dull and it was all about this argument that John and Paul had," Starr told Kimmel.
"There was lots of fun, there was lots of joy you know. It wasn't only that. There was a lot of good music, of course, but also we had a laugh," he continued.