Pictures: Celebrity graduation speakers

US President Barack Obama delivers the commencement address at the graduation and commissioning ceremony at the United States Military Academy in West Point, New York, on May 22, 2010.   (YURI GRIPAS/AFP/Getty Images)

(L-R-back) Singer Tony Bennett, Dancer Mikhail Baryshnikov, playwright Tony Kushner, Musicologist Henry-Louis De La Grange, (L-R-front) actress Patty Lapone, opera director Frank Corsaro and Philanthropist Glorya Kaufman pose as they attend the 2010 commencement ceremony where they received an honorary degree at Alice Tully Hall, Lincoln Center on May 21, 2010 in New York City.   (Photo by Jamie McCarthy/Getty Images)

Meryl Streep attends the 2010 commencement at Barnard College on May 17, 2010 in New York City.   (Photo by Bobby Bank/WireImage)

First lady Michelle Obama recieves a honorary doctorate in Public Service during the 2010 George Washington University commencement at the National Mall on May 16, 2010 in Washington, DC.   (Photo by Kris Connor/Getty Images)

Angela Lansbury receives an honorary Doctor of Musical Arts degree at the 2010 Manhattan School of Music commencement at Riverside Church on May 14, 2010 in New York City.   (Photo by Donna Ward/Getty Images)