Taylor Swift worries she will call Gwyneth Paltrow when she is drunk.
The pair are good friends, with Gwyneth even reportedly playing matchmaker for Taylor and Jake Gyllenhall, who she enjoyed a brief fling with, but the Love Story singer admitted she is in awe of the Academy Award winning actress.
"Gwyneth Paltrow [is the most famous person in my phone]," she told The Sun newspaper.
"But it means I have a strict rule that I don't have my phone on me when I drink."
While Taylor has a number of celebrity friends including Selena Gomez and Emma Stone, she revealed they rarely discuss work and instead just talk about guys.
"I have friends from all fields - people who are in school, actresses and singers," she said.
"It's surprising how we don't talk shop.
"You'd think we'd get together and discuss the stresses of fame, but we actually just talk about boys like all the other girls. We don't run through each other's scripts or compare set lists."
Taylor, 22, who is dating 18-year-old Conor Kennedy, also revealed she refuses to wear skimpy outfits because she wants to focus on her music.
"I don't really take my clothes off because I don't think I can pull it off," she said.
"Also, most people are only going to focus on one or two things about you - I want that to be that I write my own songs, not that I have great abs."