Kanye West has thanked Cher for making auto-tune so popular.
The diva first 'over-used' the software on her massive 1998 hit Believe, and it's been used in a more obvious way ever since.
Cher met Kanye at the Met Gala this week, where she says that the rapper thanked her for auto-tune.
The singer also met Kanye's wife, Kim Kardashian, and said the couple "were sweet and seemed to be having fun."
