The newly engaged True Blood star flashes her engagement ring in Venice, Calif. Plus: Kellan Lutz, Ellen & Portia and more

'WHITE' HOT

Kelly's all grown up! Tiffani Thiessen – who recently reunited with her Saved by the Bell castmates on the cover of PEOPLE – promotes her new TV series, White Collar, at the Television Critics Association's summer press day Wednesday at the Langham Hotel in Pasadena, Calif.