Watch Dr. Dre join Anderson .Paak onstage in London

Dr. Dre made a special appearance during Anderson .Paak's concert at the O2 Academy Brixton in London tonight. The two performed “Still D.R.E.” and “The Next Episode” from 2001. The free gig was filmed for Apple Music and Beats. It's not the first time Dre has crashed one of .Paak's sets— he appeared during his mentee's 2016 Coachella set as well.

Dre reportedly lent a heavy hand in producing .Paak's next record, due out this year. “It’s dope to be around like legends like that and you can feel the mutual respect," .Paak said regarding his mentor. "That’s what I always did it for, I wasn’t really thinking about money or fame, I just wanted the respect from the people I look up to musically."

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