Jennifer Lawrence, Watch Out! Lily Collins Promotes 'The Mortal Instruments: City of Bones' in Style; Rate Her Outfits [SLIDESHOW]

Jennifer Lawrence, watch out! "The Hunger Games: Catching Fire's" Katniss, has Lily Collins, "The Mortal Instruments: City of Bones" star hot on her heels when it comes to the fashion game.

Dior model Jennifer Lawrence has a few more months to prepare for her "Catching Fire" promotions but, "The Mortal Instruments" is set for cinematic release very soon. Lily Collins, Jamie Campbell Bower, and their cast mates have been promoting the film tirelessly.

24-year-old Lily has visited shopping malls, morning shows, and bookstores, and every single time, the actress has been dressed to impress. Half of the "Jamily" couple is getting very good at switching between the sweetest, lace and floral frocks, to edgy leather - just like that.

On August 7, Lily Collins promoted "The Mortal Instruments: City of Bones" with a visit to "Good Morning America. Lily looked angelic in long-sleeved, white Valentino. Her dress had a contrasting, black, lace overlay hem. To match, Lily paired her dress with lace Jimmy Choo pumps.

In contrast to her sweet, white morning show dress, Lily Collins's stop on "Late Night with Jimmy Fallon" made for an exciting fashion moment. Her acid yellow Versace bandage dress and Casadei ankle strap heels has to rate high amongst her "Mortal Instruments" promotions outfits. It was sexy, edgy, and showed a different side to Lily's style.

Speaking of sexy and edgy, Lily visited Barnes & Noble in Union Square, New York City on August 6. She shocked her fashion fans with a racy leather look, wearing a black cropped top and a leather midi skirt! As different as this was, nothing can top the moment when Lily Collins promoted "The Mortal Instruments: City of Bones" in a Philadelphia Meet and Greet. On August 2, Lily Collins's bra was on display underneath a sheer, red, contrast collar Maxime Simoens top. She added shorts, and for the kicker, thigh-high Christian Louboutin boots.

Jennifer Lawrence has her work cut out for her when "The Hunger Games: Catching Fire" rolls around. With Lily Collins blazing a fashionable trail ahead of her, expectations are surely high!

Start the slideshow to see Lily Collins promote "The Mortal Instruments: City of Bones."

For more of Jennifer Lawrence and Lily Collins's style, read:

Lily vs. Shailene Woodley: Bare Midriff Outfit Battle is On! [SLIDESHOW]

Jennifer Lawrence vs. Shailene Woodley: Printed Dress Battle [SLIDESHOW]