WWW.ACEPIXS.COM . . . . . ....NEW YORK, APRIL 12, 2006....Mandy Moore makes a guest appearance at the Late Show with David Letterman.....Please byline: KRISTIN CALLAHAN - ACEPIXS.COM.. . . . . . ..Ace Pictures, Inc: ..(212) 243-8787 or (646) 679 0430..e-mail: info@acepixs.com..web: http://www.acepixs.com