Citing Spotify research, Mark Lipsky, founder and head of The Radio Agency, said in a recent article that men make major changes in how they absorb music at age 33. Specifically, they largely cease to take in new discoveries, and embrace "the music of their teens and 20s," said Lipsky. The owner of the firm specializing in radio spot advertising noted that men who entered their teens at the turn of the 21st century fit into that demographic today, which means radio stations can appease their interests by focusing on music that was popular in the early 2000s.