Lady Gaga and the new controversy over the Oscar� award winning song ?Shallow,? from ?A Star is Born.? Plus, breaking couples news. Gwen Stefani and Blake Shelton working together, Heidi Klum living her best life and Cameron Diaz news. Plus, Selena Gomez big surprise for her fans and beloved ?Anchorman? Ron Burgundy (Will Ferrell) takes over late-night television. Entertainment Begins and Ends with ET!