U2 and Madonna start the Michael Jackson concert tribute ball rolling!

Without a doubt, MJ tributes are going to be featured in most shows during this summer concert season. And two of the music's biggest names have kick it all off!

First U2 gets the ball going with having a bit of "Man In the Mirror" and "Don't Stop Til You Get Enough" at the end of their concert in Barcelona's Camp Nou stadium as part of their 360 Tour.

And then Madonna does this bit on 4th July 2009 at the O2 stadium, which MJ was supposed to have run his 50+ This Is It! shows. Complete with an MJ impersonator dancing and moonwalking to "Don't Stop".

Man, I love that song, especially the "mama say mama sa" bit... Classic!

Let's see who else jumps on the MJ tribute bandwagon now...