Surprise! Heidi and Spencer are back on.

They were spotted kissing in Santa Barbara, Calif. Wednesday, Montag's 24th birthday. (She also was wearing her wedding ring.)

PHOTOS: Unforgettable Hills moments

The smooch comes months after they announced their split (their so-called divorce is to be finalized on Valentine's Day of next year). See more photos of Heidi and Spencer smooching.

Vote! Do you care they're back on?

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Do you care about Spencer and Heidi's kiss?

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Do you care about Spencer and Heidi's kiss?