Kendrick Lamar's To Pimp A Butterfly features production work from Sounwave, Thundercat, Flying Lotus, Terrace Martin, Tae Beast, Boi-1da and Rahki.
Then there was another name in the linear notes that had everybody scratching their heads: LoveDragon.
The strangely-monikered beat maker was responsible for TPAB tracks 'How Much A Dollar Cost' and 'You Ain’t Gotta Lie (Momma Said)?'
Early speculation was that LoveDragon was Dr. Dre, but that was shot down. There was also talk it was more than one person, but that was also dismissed by those in the know.
Earlier today, TDE's label boss Anthony "Top Dawg" Tiffith dropped a pretty big hint that he is LoveDragon.
Both of the tracks LoveDragon produced are laid back groves, and help give TPAB the diverse sound that critics have loved, but some fans have found alienating.