&#39;The Big Bang Theory&#39; actor Jim Parsons performs &#39;The Time Warp&#39; from &#39;The Rocky Horror Picture Show&#39; at the 21st Annual &#39;A Night at Sardi&#39;s&#39; to benefit the Alzheimer&#39;s Association at the Beverly Hilton Hotel on Wednesday, March 20, 2013 in Beverly Hills, California. <span class=meta>(Jordan Strauss &#47; Invision for Alzheimer&#39;s Association &#47; AP Images)</span>