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The casts of How I Met Your Mother and The Big Bang Theory hit the carpet at the 2013 CBS Upfront Presentation held at the Tents at Lincoln Center on Wednesday (May 15) in New York City.

Representing the cast of How I Met Your Mother were the main five cast members – Neil Patrick Harris, Alyson Hannigan, Jason Segal, Cobie Smulders, and Josh Radnor.

In attendance from The Big Bang Theory were Johnny Galecki, Kunal Nayyar, and Melissa Rauch.

20+ pictures inside of the comedy stars at the 2013 CBS Upfront Presentation… More Here! »

Jim Parsons and Kaley Cuoco don their Rocky Horror Picture Show finest at the 2013 A Night at Sardi’s Gala benefiting the Alzheimer’s Association on Wednesday (March 20) at the Beverly Hilton Hotel in Beverly Hills, Calif.

The Big Bang Theory co-stars performed “The Time Warp” from The Rocky Horror Picture Show at the event with the help of their cast mates Johnny Galecki, Simon Helberg, Melissa Rauch, Mayim Bialik and Kunal Nayyar.

“This is the fifth year we, as The Big Bang cast, have come here to do a number to keep bringing attention to this cause” Jim told ET. “There is no cure yet and it’s just very important to keep attention on it until there is one.”

10+ pictures inside of the Big Bang Theory cast as Rocky Horror… More Here! »

Emmy Rossum glams up for the 2013 A Night at Sardi’s Gala benefiting the Alzheimer’s Association on Wednesday (March 20) at the Beverly Hilton Hotel in Beverly Hills, Calif.

Arrow star Colin Donnell stepped out on the red carpet with his girlfriend Zelda Williams while The Big Bang Theory‘s cast, including Jim Parsons, Kaley Cuoco, Mayim Bialik, Johnny Galecki, Simon Helberg, and Kunal Nayyar were all in attendance.

Also showing their support for the great cause were Zachary Levi, 2 Broke Girls‘ Beth Behrs, Emmy‘s Shameless co-star Shanola Hampton, and NCIS Los Angeles‘ Barrett Foa.

FYI: Emmy is wearing a Tory Burch dress and Jacqueline Nerguizian jewelry. Kaley is wearing a Monique Lhuillier dress and a Kotur bag.

30+ pictures inside of Emmy Rossum and others at the Alzheimer’s Association event… More Here! »

Kaley Cuoco and Jim Parsons hit the red carpet at the 2013 PaleyFest Panel for their show The Big Bang Theory on Wednesday (March 13) at the Saban Theatre in Beverly Hills, Calif.

The 27-year-old actress and Jim, 39, were joined by their co-stars Johnny Galecki, Mayim Bialik, Melissa Rauch, Simon Helberg, Kunal Nayyar, and Pauley Perrette.

PHOTOS: Check out the latest pics of Kaley Cuoco

The Big Bang Theory airs every Thursday at 8/7c on CBS!

15+ pictures inside of Kaley Cuoco and the cast of Big Bang Theory at 2013 Paleyfest… More Here! »

Liam Hemsworth and Taylor Lautner attend the 2013 Grey Goose Pre-Oscars Party held at the Chateau Marmont on Saturday (February 23) in West Hollywood, Calif.

The guys were joined at the party by Shiloh Fernandez, Emile Hirsch, Russell Brand, Jean Dujardin, Tobey Maguire with wife Jennifer Meyer, Jesse Tyler Ferguson and fiance Justin Mikita, January Jones, Benji Madden and Joel Madden, Josh Hartnett, Felicity Jones, Eric Stonestreet, John Krasinski, Johnny Galecki, and Lizzy Caplan.

Make sure to stay tuned to JustJared.com for the best Oscars coverage you can find!

15+ pictures inside of Liam Hemsworth and others at the party… More Here! »

Lucy Hale poses with her pal Zelda Williams at a celebration of her Nylon magazine cover spread on Friday (December 7) at the Andaz Hotel in Los Angeles.

The 23-year-old Pretty Little Liars actress also received support from her co-star Tyler Blackburn, Jessie star Chris Galya, and The Big Bang Theory‘s Johnny Galecki.

“So excited for the @NylonMag party tonight!” Lucy tweeted before the party.

“Last night with @NylonMag was incredible. Thanks to everyone that came out!” she later tweeted along with a pic of the cake featuring her cover.

10+ pictures inside of Lucy Hale at her Nylon cover celebration… More Here! »

Kaley Cuoco, Johnny Galecki, and Melissa Rauch are all smiles at a photo call before their panel for The Big Bang Theory at 2012 Comic-Con held at the San Diego Convention Center on Friday (July 13) in California.

Jim Parsons participated in the panel via teleconference – Jim is currently in New York beginning his Broadway run in a comedy called “Harvey.”

NBC’s comedy Community also made an appearance at Comic-Con – the panel included Joel McHale and Gillian Jacobs.

Also pictured inside: The Adult Swim panel, including Matt Maiellaro and Dave Willis.

15+ pictures inside of the Big Bang Theory, Community, and Adult Swim panels at Comic-Con… More Here! »