VIDEO : Heidi Klum Welcomes Simon Cowell With A Few Fun Jabs!

The American Idol alum (and creator of AGT) joins the NBC reality series for season 11 as a first-time judge, replacing outgoing mainstay Howard Stern?and there instantly appears to be a bit of friendly rivalry between the caustic Brit and the gorgeous supermodel. "He is the boss-man himself. He invented America's Got Talent and he is a whole lot of fun," Klum gushed when asked Cowell's involvement in the series. "I feel like it is more lighter this year. We're laughing more, having more fun.