Jon Hamm doesn't ''get'' Miley Cyrus or One Direction.

The 'Mad Men' actor, who was the subject of backlash last year when he questioned the popularity of reality TV star Kim Kardashian, admits he isn't up to speed with pop culture phenomenons such as the 'Wrecking Ball' hitmaker and concedes he often sounds like a grumpy old man.

He said: ''I got s**t on for saying I don't agree with the fact that the Kim Kardashians and Paris Hilton of the world are worthy of attention and people were saying, 'How dare you!' I thought, 'Wow, really? That's a terrible thing to say?' It's ridiculous.

''I'm getting older, I'm slowly morphing into that guy who stands on his lawn and shakes his fist and shouts, 'Get off my lawn!'

''All I can is that I don't get Miley Cyrus, I don't get Katy Perry, I don't get One Direction ... I don't get why that's a thing.''

While he isn't interested in the latest youth trends, the 42-year-old former high school teacher feels it is his responsibility to share his wisdom with young people.

He told ShortList magazine: ''I was a teacher for a big portion of my life and even though I'm not a father, I have nieces and nephews and friends have kids. A lot of my friends' kids are getting into double digits and turning into little people and it's fascinating. You have a duty as an adult to impart to the next generation. I'm happy to do that.''