A Broadway debut? Tennis at the U.S. Open? Strolling around New York while changing outfits? Ellen DeGeneres sure had one insane week. The talk show host made a guest appearance in the Broadway show Promises, Promises yesterday, where played a nurse alongside Kristin Chenoweth and Sean Hayes. Earlier in the day, Ellen took tennis practice against superstar playerÂ Melanie Oudin on the U.S. Open courts. Slow down, Ellen! The woman really is a Jill of all trades.