Legendary Aerosmith guitarist Joe Perry has celebrated Steven Tyler’s 71st birthday with a special letter which he shared on Twitter.

Joe has shared a rare photo of himself with Steven, and wrote:

“Happy Birthday @iamstevent

Another year, another first, another adventure. I couldn’t have a better partner in crime. Love you brother.

Congratulations…..”

Then, Steven responded to Joe with a simple tweet:

“MY BROTHER MY BROTHER 😘”

You can see the tweets below.