Jane Fonda and Nicollette Sheridan's Face Off

Who looked older at the Elle Women in Hollywood gala last night?

Nicollette Sheridan or Jane Fonda?

To find out their real ages, keep reading ... and prepare to be be amazed.

According to Internet Movie Database, Nicollette Sheridan is going to be 45 next month.

Jane Fonda will turn 71 in December.

Yikes.

We'll have whatever Jane's having. Or doing.

How about you?

Photos: WireImage