Sunday Feb 07 2010 comments Scenes from EDMT's 'Grease' By: Telegraph photography by Don Chaddock -A +A The Pink Ladies have a slumber party in "Grease," running through Feb. 21. From left are Clara Regula as Sandy, Heather Clark as Frenchy, Jordan Sharp as Rizzo, Katherine Sorgea as Marty, and Helen Regula as Jan. A cast 39 strong performs in the musical "Grease," produced by El Dorado Musical Theatre and running through Feb. 21. Marty, played by Katherine Sorgea, sings her heart out in "Grease," running through Feb. 21. Sandy, played by Clara Regula, left, sings about her "Summer Nights" in "Grease." From left are Terry Hicks, Chris Meissner, Spencer Borup, Stefan Sorgea and Braiden Wells in "Grease," playing through Feb. 21.