This is the story of how Dr Dre went from high school drop-out to the richest man in hip-hop. From his solo career, to signing Eminem and Snoop Dogg and finally, the megabucks money he's made with Beats.
Watch the moment Eminem stunned Wembley with his special guest.
Eminem made history becoming the first ever rapper to headline Wembley Stadium in London last night (11th July) and, as you might expect from Marshall Mathers, he marked the moment with a surprise appearance from Dr Dre.
The producer-rapper, who is largely responsible for helping Eminem breakthrough, performed four songs - 'The Next Episode', 'Still Dre', 'Nuthin' But A G Thang' and 'Forgot About Dre' - after being introduce to the Wembley audience.
You can watch the moment above. (Warning: the video contains strong language that some people may find offensive.)
And here's another video of their full performance.
Here's Eminem performing 'Love The Way You Lie':
Eminem's Wembley Stadium setlist:
'Won't Back Down'
'Don't Give A F**k'
'Still Don't Give A F**k'
'The Way I Am'
'The Next Episode'
'Nuthin' But A G Thang'
'Forgot About Dre'
'Love The Way You Lie'
'Sing For The Moment'
'Like Toy Soldiers'
''Till I Collapse'
'My Name Is'
'The Real Slim Shady'
Eminem was supported at the concert by Odd Future, who will also join him at the second show tonight (12th July).