The 26-year-old stopped by "The Tonight Show with Jay Leno" on Tuesday to promote her upcoming (seemingly horrible) TV movie "Liz & Dick," in which she portrays Dame Elizabeth Taylor.
Her appearance was controversial as Linds had promised Barbara Walters the first interview following her (most recent) legal troubles ... only to cancel shortly before the sit-down was scheduled to happen.
Oh, plus last week she discovered that she has a 17-year-old half-sister thanks to her equally-as-troubled pops, Michael. Yay, Lohans!
See what Lilo had to say about both situations -- including her advice to her new sis -- in the video above, plus watch below to see Barbara's sassy response to Lindsay on "The View" this morning!
"Liz & Dick" airs this Sunday on Lifetime. Will you be tuning in?