Somewhere on Yahoo News I read this text:
Scarlett Johansson and Sean Penn turned heads when they showed up together at Reese Witherspoon's wedding. The 26-year-old actress took 50-year-old Penn, who is 24 years her senior, as her date to the star-studded nuptials. Plus, Lady Gaga sets a new Twitter record, and life's a beach for David Beckham and Sofia Vergara as they shoot a Diet Pepsi commercial.
What does "life's a beach" mean?