updated 11/23/2009 AT 7:00 AM ET
•originally published 11/23/2009 AT 8:15 AM ET
Sure, she’s an actress and he’s a World Series champ, but the couple made sweet music together backstage at the American Music Awards Sunday night.
After the pair palled around with Fergie in the chilly outdoor backstage area at the Nokia Theatre in Los Angeles, “A-Rod gave Kate a big squeeze to keep her warm,” says a source, “and a sweet smooch.”
Hudson was, “beaming, glowing actually,” adds the source.
Hudson, along with Nicole Kidman, who both star in the upcoming Nine with Fergie, introduced the singer-actress’s performance with the Black Eyed Peas, while Rodriguez introduced Jay-Z and Alicia Keys, who sang their hit, “Empire State Of Mind.”
Hudson, in a barely-there silver dress, ignited giggles from the crowd when she repeatedly adjusted her plunging neck line. But backstage, she “didn’t look uncomfortable at all in the outfit,” says the source.