Gomez said Aniston has always been her acting idols and the awkward encounter is one of the most embarrassing moments of her life, reported Contactmusic. 

Selena Gomez
Pic/Santa Banta

"I ran away from Jennifer Aniston when she said, 'Hi'. I was terrified of her. I was scared, so I ran away and I'm really embarrassed about that," Gomez said.

Jennifer Aniston
Pic/Santa Banta

Meanwhile, the 20-year-old, who split from 'Baby' singer Justin Bieber last year, has insisted that her new single, 'Come and Get It', is not about her former boyfriend.

"It's not really about a specific person... It exudes confidence and strength and that is something I'm willing to share with the world. I want to represent something good and be a good example."