Julia Louis-Dreyfus was celebrated on Sunday as she received the Mark Twain Prize for American Humor, becoming the 21st person the Kennedy Center for the Performing Arts has recognized with the award. The acclaimed Emmy-award winning comedic actress, best known for starring in Seinfeld and Veep, was praised by 2010 Mark Twain recipient Tina Fey, who lauded Louis-Dreyfus for her "secret precision" and commitment to making her Seinfeld character Elaine Benes flawed.