Speaking of brunch, you do know that Kit Kat Lounge & Supper Club offers Saturday brunch now, don't you. Well if you didn't, you'd better make your reservations right now for the "Summer Lovin'" and "Xanadu" brunch parties on Saturday, Aug. 11 and Sunday, Aug. 12. The brunches are a tribute to Olivia Newton-John, who will be performing live at Market Days. On Saturday the lounge will host a "Summer Lovin' Brunch" with Diva Madam X (pictured) performing hits from the acclaimed musical "Grease". The film will play on Kit Kat's seven jumbo screens and giveaways will include CDs and head shots signed by Olivia Newton-John, along with copies of her new cookbook "Livwise: Easy Recipes for a Healthy, Happy Life". Guests are encouraged to dress as Sandy, Zuko, Rizzo and other favorite Rydell High students. Then on Sunday, the party will continue with a "Xanadu Brunch," complete with performances by Madam X, autographed giveaways and sing-a-longs. The musical Xanadu will play on Kit Kat's seven screens and guests will enjoy half-priced martinis.