Most people would be wiped after several rousing "rama lama lama ke ding a de dinga a dongs" and "shoo bop shoo wadda wadda yipitty boom de booms", but not Madonna - she threw an after-party to celebrate her daughter's performance in her school production of Grease.
She took daughter Lourdes Leon - her child with Carlos Leon - and 10 of her friends to an 'apres-ski themed' lounge at the Hudson Hotel in New York City after she watched the 17-year-old budding fashion designer take to the stage for the show staged by LaGuardia High School.
A source told the New York Post: "Madonna toasted with champagne. The kids all had pink lemonade."
Madonna attempted to keep a low-profile as she watched the musical with her other children, Rocco, David and Mercy and wore 'sunglasses for the whole show'. Because wearing sunglasses in a darkened room is known for detracting attention from oneself.
Lourdes, who was obviously cast as Betty Rizzo in the musical won rave reviews for her performance: "Really good. The show was completely sold out, and people were scalping tickets beforehand... Lourdes is a great singer, dancer and actress and seemed completely comfortable on the stage. She also seemed like she was having a lot of fun with the part."
Great at acting, eh? Must run in the Leon side of the family *ducks*