Oprah, is your refrigerator running?
Lindsay Lohan stopped by "Late Show" on Wednesday, April 9, and decided it would be a good idea to give Oprah a call on air. Though host David Letterman was initially hesitant, he quickly put on his best impersonation of Lohan's secretary, who apparently sounds just like Letterman speaking in a high voice, and talked to a confused Oprah.
Check out the whole clip above.
"Late Show With David Letterman" airs weeknights at 11:35 p.m. EDT on CBS.