A teen idol is a celebrity or famous person who is very popular with teenagers. Teen idols are often young, but are not always teenagers themselves. They are often pop singers or actors. People started to call celebrities teen idols in the 20th century. Some early teen idols were Rudolph Valentino, Frank Sinatra, Judy Garland, Elvis Presley and James Dean.
In the 1960s and 1970s some pop singers became known as teen idols, like The Beatles, The Rolling Stones, The Monkees, Donny Osmond and David Cassidy. In the 1990s, bands like New Kids on the Block and Backstreet Boys were very popular with teenagers. In the 21st century, some teen idols have been Britney Spears, Miley Cyrus and the Jonas Brothers.