Watch Bruno Mars Rehearse For His Prince Tribute at the Grammys

Photo courtesy of YouTube.

There have been many Prince tributes.

But, really, there has only one Prince tribute. And that was Bruno Mars' performance at the 59th Grammys earlier in the year.

WATCH: Bruno Mars and The Time Perform "Let's Go Crazy" At The Grammys' Prince Tribute

During that show, Bruno performed Purple Rain opener "Let's Go Crazy." That album is celebrating its 33 year anniversary this week.

That album is celebrating its 33 year anniversary this week.And, for the occasion, Bruno has released some cool, behind the scenes of the rehearsal. Paying homage to the purple, one the video has a purple filter on it.

READ: Bruno Mars: "American Music Is Black Music"

The YouTube description reads:

“33 years ago this Sunday, Prince and his band, The Revolution, released ‘Purple Rain,’ one of the most important albums of all time. To celebrate the anniversary weekend, here’s a behind the scenes look of us rehearsing for the tribute we did at the 59th Grammy Awards.”

Watch the video below.