Rage Against The Machine and Audioslave guitarist Tom Morello has posted a new photo of his long-time buddy, Zack de la Rocha, on his official Instagram page today and celebrated his 51st birthday with complaining words about his bandmate.

Zacharias Manuel de la Rocha has born in 1970 and he’s known as one of the most passionate promoters of left-wing political positions in America. De la Rocha has met Tom Morello in 1991, after parting ways with his second band Inside Out, and embracing hip-hop while freestyling at local clubs.

In the same year, Tom Morello has managed to convince De La Rocha to form a band and they have released their debut album in 1992 as Rage Against The Machine. Today, Tom paid his tribute to his long-time friend and claimed that Zach is the greatest ever who is the punk rock poet freedom fighter on the mic.

Here is what he said in the caption:

“A very happy birthday to the punk rock poet freedom fighter Zack de la Rocha, the greatest to ever do it on the mic, on the stage, or in the studio!”

Click here to check out the post.