February 9, 2010 9:34 pm Kellan Lutz Poses In His Skivvies For Calvin Klein Go behind-the-scenes of “The Twilight Saga’s” Kellan Lutz‘s underwear shoot for his new Calvin Klein “X” ad campaign. US & World Videos 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 2:05 Whoopi Goldberg reveals who will inherit her fortune