Lindsay Lohan was left fighting back tears during a recent Tv taping after she attempted to prank call Oprah Winfrey, only for the media mogul to gush about how proud she is of the embattled actress' progress.

The Mean Girls star paid a visit to the Late Show with David Letterman on Monday (07Apr14) and offered to share her contact details for Winfrey so the Tv host could surprise their mutual pal on air.

She said, "I think maybe I should just call her right now. Should we call Oprah? I think so. Do you have a phone? Have we got a phone?"

A reluctant Letterman finally agreed to the stunt and pretended to pose as Lohan's assistant after Winfrey picked up.

He said, "Yes, can I speak to Oprah Winfrey please? Hi, this is, uh, Lindsay Lohan's secretary."

When Winfrey asked, "Who is this?", Letterman gave in and confessed, "It's Dave, Oprah. It's Dave."

He then asked The Butler star how she thought Lohan was doing after completing a court-ordered stint in rehab last summer (13) and filming her own reality show, Lindsay, which is produced by, and airs on, Winfrey's Own network in America.

Praising Lohan, Winfrey said, "I think she's doing Ok... I think she's doing really Ok. I think to have cameras following you around for every phase of your life and you're trying to pull your life together, I think that's a really difficult thing.

"We're really pleased that she's making some progress."

A smiling Lohan appeared to wipe away tears as the call ended.

The interview is due to air on Wednesday night (09Apr14).