You're used to seeing this guy as a nerdy physicist on the hit television show "The Big Bang Theory," but he's taking a dramatic turn this summer and it's guaranteed to be incredible. JIM PARSONS is here! The Emmy and Golden Globe-winning actor is starring in the new HBO film "The Normal Heart," an eye-opening adaptation of the stage play about the HIV/AIDS crisis. Ellen has helped Jim prep for rowdy, unpredictable Broadway audiences, she's hooked his friends up with show tickets, and also treated him to a sweet collection of Ellen kitchenware. There's no question our host has Jim's back and she's ready to fulfill more fun requests when he returns! "Rizzoli & Isles" star SASHA ALEXANDER stops by for the first time! From the teen dream scene of "Dawson's Creek" to crime mystery investigations on "NCIS," the actress can effortlessly play a doctor, Secret Service agent or your best friend. Sasha has come a long way since her days smooching with Dawson on the beach, and she's here to recap it all for Ellen! Then, HOZIER takes the stage! The rising Irish singer-songwriter will perform his hit song "Take Me to Church," which has been viewed on YouTube over 4 million times. Along with a new album out in the fall, Hozier's preparing lots of surprises for his rapidly growing fan base around the world, and he's starting with Ellen and her crowd! Watch him raise the roof when he makes his debut! Plus, the phenomenal performance of semi-finalists BARS & MELODY on "Britain's Got Talent" took Simon Cowell and the Internet by storm, and Ellen is flying them over for an encore! The rapping duo's anti-bullying anthem has hit over 8 million views on YouTube in less than a week, and they'll be bringing that astounding, honest bravado to the stage! On Thursday, Ellen's got heart and soul!