‘I feel like I’d be getting to work out at the gym with the best trainer in the world,’ she says of singing with ‘American Idol’ runner-up. By James Montgomery, with additional reporting by Jim Cantiello Lea Michele and Cory Monteith Photo: MTV News For weeks, rumors have been circulating that “American Idol” fave Adam Lambert was in talks to appear on an upcoming episode of “Glee,” a pop-culture match seemingly made in glammy, gold lam
