Winning a Grammy is one of the proudest moments of an artists career; however, there are some people who have won for the wrong albums.

John Mayer jammed with Dead & Company at the lively event hosted by Andy Cohen that also included performances from Wynonna Judd, Norah Jones, Sammy Hagar, Vampire Weekend, My Morning Jacket and more.

Willie Nelson is known for his top-notch and often unconventional collaborations. We're fond of these four collabs, specifically.