[Editor's note: we've added some of the most recent tributes to this list, including ones from Paul McCartney, Haim, Mac Demarco and Beck.]
Here are some of our favorite ones:
Paul McCartney covered "Let's Go Crazy" while playing a show in Minneapolis at the Target Center.
Mac Demarco actually recorded a cover of "It's Gonna Be Lonely" from Prince's 1979 album.
Beck nailed "Raspberry Beret" during his set at the Beale Street Festival.
Haim ripped through "I Would Die 4 U" during a show in Santa Ana, California.
Pink Floyd's David Gilmour mashed up "Comfortably Numb" with "Purple Rain."
Billy Corgan played an acoustic version of "The Cross."
Liz Phair's "Nothing Compares 2 U" in New Orleans.
Dixie Chicks in Denmark with "Nothing Compares 2 U"
Chris Stapleton took a run through "Nothing Compares 2 U" in Berkeley.
Chris Martin played "Raspberry Beret" with eighth graders at the Chords 2 Cure Benefit show.
Maya Rudolph and her Prince cover band Princess played "Let's Go Crazy" at the Moontower Comedy & Oddity Fest.
Meanwhile, Yacht worked up a cover of "Annie Christian" from 1981's Controversy.
Jack U mixed in "I Wanna Be Your Lover" and other Prince songs into their set.
Sufjan Stevens and Gallant with "Purple Rain."
Ellie Goulding's "When Doves Cry."
Mavis Staples called Prince her "son" and "the most beautiful spirit that I have ever met" and then sang "Purple Rain."
Joey Bada$$ mixed in some "1999."
And, of course, Bruce Springsteen's epic "Purple Rain."