'Good Morning America' Throws 'Today'-Crushing Gloat Party

For the first time in 16 years, ABC's "Good Morning America" edged out NBC's "Today" in the morning show ratings last week -- and this morning, ABC News rubbed it in NBC's face ... throwing a champagne-popping victory party.

All the big swinging chicks at ABC were present ... including Robin Roberts, Diane Sawyer, and Lara Spencer -- in addition to ABC News President Ben Sherwood, Senior EP Tom Cibrowski, former "GMA" host Charlie Gibson, George Stephanopoulos, Sam Champion ... pretty much the whole crew.

We're told Robin Roberts toasted the entire "GMA" team, saying, "We're the face of it, but it's all you. Everyone in this building is a team."