Worst Mac-related cover version

[Dodfather]

A comment on one of the other threads inspired this one. Now, I do love unearthing random cover versions and so I was wondering... what covers of Mac/Stevie/Lindsey solo songs do you think are the worst?

I'd have to go for Lindsay Lohan's Edge of Seventeen, Elton John's Don't Stop and whoever does the version of Songbird on the Rumours tribute album (his name has gone right out of my head)...Abominations, all of them.

Any others folks?

Oh, and is this gonna spawn a sister "best covers" thread?