The injured singer leans on her crutch while out at The Ivy in Los Angeles. Plus: Robert Pattinson, Fergie, Gwyneth Paltrow and more

CAST OF 'CHARACTERS'

Mena Suvari, Christian Siriano and Lucy Liu (in Rachel Roy) make a stylish trio Thursday at the launch event for American Character: A Photographic Journey, a photography book featuring extraordinary people from all walks of life, at the Stephan Weiss Studio in New York City.