Katie Holmes at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Emmy Rossum at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

INTERVIEW: Ashley Greene on Tiffany's jewelry at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Lydia Hearst at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

ATMOSPHERE at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

PERFORMANCE: Brandi Carlile at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

ATMOSPHERE at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

ATMOSPHERE at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

ATMOSPHERE at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Emmy Rossum at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Ashley Greene at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Katie Holmes at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Emmy Rossum at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Diane Kruger at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

WS, Walt Disney Concert Hall, Los Angeles, California, USA

Katie Holmes an at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Maria Shriver at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Katie Holmes and Halle Berry at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

ATMOSPHERE at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Aerial LA CU Disney Concert Hall, Downtown Los Angeles, California, United States.

Halle Berry, Joshua Jackson and Diane Kruger at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Halle Berry and Olivier Martinez at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Joshua Jackson and Diane Kruger at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)

Diane Kruger and Joshua Jackson at the Tiffany & Co. And Frank Gehry Debut The Gehry Watercolor Collection For Tiffany & Co. at Los Angeles CA. (Footage by WireImage Video/Getty Images Entertainment Video)