KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York

KATHERINE MCPHEE at The Late Show with David Letterman in New York