ROSIE O'DONNELL returns to daytime television for a one-hour visit with RACHAEL RAY -- and ET/The Insider has your sneak peek!

"Oh my, God. Rosie is such a blast," Rachael tells ET's STEVEN COJOCARU, who is on the set of her talk show. "I love her. There were production numbers; there was a piano; there was confetti; there was crafting; there was food; there was song. It was one of the greatest days ever."

Rosie also gives Rachael a crash course in crafts, as she promotes her new book, Rosie O'Donnell's Crafty U: 100 Easy Projects the Whole Family Can Enjoy All Year Long, now in stores.