Enjoying her London stay, Lily Collins headed out for a night on the town on Monday (August 19).

The "Mirror, Mirror" beauty rocked an all-black ensemble showing off her toned midriff as she made her way past the awaiting shutterbugs at her hotel.

Recently, Miss Collins spoke to MTV News about the lack of similarities between her "The Mortal Instruments: City of Bones" character Clary and Kristen Stewart's "Twilight" character Bella Swan.

"She has this sassy comedic undertone, which Jace brings out in her, as well as Simon. She doesn't choose to become part of this other world. She already is a shadow hunter, unlike Bella maybe, who chooses to become a vampire," Lily explains.

"She doesn't let romance define her. She's on this single track to get her mom back. She doesn't victimize herself. She's always thinking of new answers to questions, instead of letting people solve it for her."

Also discussing how she runs in heels constantly throughout the film, the 24-year-old actress admits it was a bit of a challenge, and something she's planning to cut in the sequel.

"It was difficult [running in heels], but I never fell once. Any awkwardness as Lily, running around in heels and a short dress, I could play off as Clary, so really, it worked out for me," she says. "But I am having wardrobe talks for the next one, and I am probably going to request a little shorter heels or a little less revealing."