The Victoria's Secret model - who is married to Kings Of Leon rocker Caleb Followill and has a 11-month-old daughter Dixie Peal - admits she is obsessed with the 22-year-old 'Silver Linings Playbook' star because she thinks she has a great sense of humour.
The 27-year-old beauty helped to announce the lingerie brand's eight annual What is Sexy? list on 'On Air with Ryan Seacrest' on KIIS-FM on Friday (24.05.13), which awarded Jennifer with the Sexiest Sense of Humour title and Lily thinks she deserves it.
She said: ''My favourite on the list is for sexiest sense of humour and it's Jennifer Lawrence and I think a sense of humour is so sexy and she's just such an amazing woman. I have a total girl crush on her.''
Lily admits that she would be a little starstruck if she met her crush and wouldn't know what to say.
She added: ''I'd probably just high five her!''
Lily recently revealed that she plans to go on tour with her husband and his band this summer.
She previously said: ''My husband's going on tour for the summer, so that's where I'll be! It's a family affair.
''We'll stay in one place [together] and he'll go and play and tour and then come back every night. It's going to be great.''
Complete Victoria's Secret 2013 What is Sexy? List:
Sexiest Actress: Jessica Chastain
Sexiest Style: Nina Dobrev
Sexiest Legs: Blake Lively
Sexiest Bikini Body: Rihanna
Sexiest Hair: Amanda Seyfried
Sexiest Smile: Zoe Saldana
Sexiest Eyes: Zooey Deschanel
Sexiest Lips: Kerry Washington
Sexiest Curves: Shakira
Sexiest Sense of Humour: Jennifer Lawrence
Sexiest Mom: Giuliana Rancic
Sexiest Songstress: Beyoncé
Sexiest International Import: Emilia Clarke
Sexiest Summer Glow: Hayden Panettiere
Sexiest Sporty Style: Ashley Greene
Sexiest TV Cast: 'Revenge'
Sexiest Cyber Star: Tone It Up Girls