(Cover) - EN Showbiz - Dianna Agron has revealed that Stevie Nicks made her cry on the set of TV show Glee.

The 24-year-old is best known for her portrayal of high school cheerleader Quinn Fabray on the hit American series. The actress is now starring in the film I Am Number Four alongside boyfriend Alex Pettyfer.

The pretty blonde is a strong supporter of arts education in schools and she was overcome with emotion when 62-year-old singer-songwriter Stevie expressed its importance in a speech given while the cast of Glee were filming.

"We had the pleasure of Stevie Nicks being on set yesterday, Dianna told ET.

And she kind of made us all cry because she came and she said, 'If I hadn't been a musician, I would have been a teacher. And I would've hoped to send this message to kids - that although there are very important things like math and science and learning, you know, kind of the things that get you through life, there's also you need to find joy. And whether that's through music or dance or things like that, you need to have outlets in your life.'"

In I Am Number Four Dianna plays the role of a high-school loner who falls in love with a mysterious fellow student John Smith, played by British actor Alex. It turns out that John is a fugitive on the run a teenager with super powers who hides his identity

"She's a classically beautiful lady," Alex said when describing his co-star and girlfriend Dianna. "I will be a gleek tonight." (C) Cover Media