Credit: GIOVANNI RUFINO / THE CW ©2011 THE CW NETWORK

Diana Payne (Elizabeth Hurley)! But are we really surprised? We knew she had some connection to the Basses awhile back and, with last week’s discovery that the woman Chuck thought was his mom wasn't, our heads were spinning from the maternal possibilities! But could it really be that simple? Would Gossip Girl writers really just hand Chuck’s mama on a silver platter with still a few eps to go? Maybe. Especially since Season 5 is far from Diana’s swan song...

SPOILERS AHEAD!

Credit: GIOVANNI RUFINO / THE CW ©2011 THE CW NETWORK

UPDATE, 4/23: After this week's Season 5, Episode 21, "Despicable B," Diana's biggest secret might be that she's not Chuck's mother after all! When Nate finds a photo of Elizabeth (the mother Chuck thought was his mother before Diana claimed that title), Chuck ID's the man's arm in the photo as not that of Bart Bass... but of Bart's brother Jack! So, yes, that means Jack, Chuck's uncle, might actually be Chuck's father, and he's paying Diana to throw Chuck off the scent. But Chuck's not giving up, teaming up with Blair next week to "expose" the truth about his maternity and paternity. (PHEW!)

 

Looks like Serena (Blake Lively)’s Gossip Girl-ing is good for more than just insecure trashing of Miss Lola (Ella Rae Peck)! The mystery of who donated the blood that saved Chuck’s life (and, in turn, the identity of his real mother) was discovered by the Upper East Side’s (fading) It Girl in Season 5, Episode 20: “Salon of the Dead.” And the person is...

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