Witnesses saw ScarJo waiting for Jason backstage earlier this week while he did a performance of What's Going On? With Mike Mitchell at the Upright Citizens Brigade in El Lay.
Not only that, but it's also common knowledge around the stage crew that the two are a couple.
So, we have to wonder…why are they keeping it secret? ScarJo is officially a single woman now so there's no need to hide from the public.
UPDATE: Looks like ScarJo didn't spend the weekend with Jason as a rep reveals to PerezHilton.com:
“Scarlett was in New York over the weekend visiting her sick dad in the hospital. She traveled to NY on Friday night and then flew back on Sunday morning to make it for the Oscars. There is no physical way she was here in Los Angeles on Saturday night.
They are not dating.”
[Image via WENN.]