Hargitay waves to admirers outside of David Letterman's N.Y.C. studios. Plus: Julianne Hough, the Idol judges & more!

HAPPY TO SEE YOU

Say "hi" to Mariska Hargitay! The Law & Order: SVU star has a friendly smile and wave for the crowd outside N.Y.C.'s Ed Sullivan Theater, where she taped Thursday's episode of the Late Show with David Letterman