WEDDING PREPARATIONS BEGIN FOR APRIL AND MATTHEW, ON ABC'S "GREY'S ANATOMY"

"Man on the Moon" - April's sisters arrive to help celebrate April's upcoming nuptials and quickly get on her nerves. Matthew and Jackson are forced to work together when they witness a terrible accident, Callie and Arizona work hard to reestablish their relationship and Cristina is pressured to live stream an upcoming surgery. Meanwhile, a familiar face returns to the hospital, on "Grey's Anatomy," THURSDAY, DECEMBER 5 (9:00-10:00 p.m., ET) on the ABC Television Network.

"Grey's Anatomy" stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Justin Chambers as Alex Karev, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Kevin McKidd as Owen Hunt, Jessica Capshaw as Arizona Robbins, Jesse Williams as Jackson Avery, Sarah Drew as April Kepner, Camilla Luddington as Jo Wilson, Gaius Charles as Shane Ross, Jerrika Hinton as Stephanie Edwards and Tessa Ferrer as Leah Murphy.

Guest cast TBA.

"Man on the Moon" was written by Elizabeth J.B. Klaviter and directed by Bobby Roth.

"Grey's Anatomy" is broadcasted in 720 Progressive (720P), ABC's selected HTV format, with 5.1-channel surround sound. A TV parental guideline will be assigned closer to airdate.

For more information on "Grey's Anatomy" please visit ABC.com.