Taylor Swift: 7 ways boyfriends make you sad

Most of us want to forget the heartache and struggles of adolescence, but for pop singer Taylor Swift, those memories are the makings of a great song.

On 60 Minutes Overtime, Taylor tells Lesley Stahl the secrets of her song-writing. "I break down emotions into like 50 million categories," Taylor explains, and one big category is sadness, mostly the sadness of love.

"There's the missing-him kind of sadness," Taylor says. "There's the frustrated-and-confused, don't-know-why-it-ended kind of sadness, there's the sadness tinged with anger..." and a few more variations on the ways that a boyfriend can get a girl down.

It's all sad, but true, and her fans love it, as you'll see in Lesley Stahl's60 Minutes piece, "Taylor Swift," produced by Shari Finkelstein. Since releasing her debut album, she has sold more records than any other artist in any genre. Her album "Speak Now" is her third record to go multi-platinum.

Says Lesley, "She seems to know, even at her young age, just the right notes to hit in her songwriting and her business. Taylor Swift's has been a meteoric rise."

Also be sure to check out Overtime piece "Behind the Scenes at a Taylor Swift concert."As you'll see, Taylor must be Swift during her concerts, with quick costume changes and mad backstage dashes. But she always finds time to write a special lyric on her arm before the concert...