Diaz steps out with illusionist Angel in Las Vegas. Plus: Britney, Joey & Apolo and more

'LOVE' AT FIRST SIGHT

After dinner at Bellagio's Prime steakhouse in Las Vegas, Cameron Diaz and illusionist Criss Angel take in a late performance of Cirque du Soleil's Beatles tribute LOVE at the Mirage. "They seemed really happy," a witness tells PEOPLE.