Lindsay Lohan Guest Hosts Chelsea Lately
08/02/2013 AT 09:00 AM EDT
Just days after completing a three-month rehab stint at the Betty Ford Center in Rancho Mirage, Calif., Lohan – in the ultimate, ironic celebrity swap – recorded a guest-hosting stint for Chelsea Lately Thursday, joking in the opening monologue that she had "been on a 90-day court ordered vacation."
TMZ reports that sources from the set say The Canyons actress, 27, mocked Chelsea Handler's own famed drinking habits and held her own while bantering with comedians Jen Kirkman and Fortune Feimster.
"She said she felt really good. And she was polite to everyone, thanked the whole crew. She was on time, hit her marks and was very funny. The audience loved her!" a source at the taping tells PEOPLE.
She also made a joke when talking about Harry Styles bisexual quote, saying, "Been there!"
E! reports that Lohan wore an all-black ensemble and "looked better than ever, strutting her svelte figure and giving off a radiant glow."
Does this signal a turnaround for the troubled actress? A source recently told PEOPLE that Lohan was the "best I've ever seen her, honestly. All she wants to do is work."
Lohan's guest hosting gig will air on Chelsea Lately Aug. 5 at 11 p.m. ET on E!.
– With reporting from Aili Nahas