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Some new in the rap category:
The D.O.C. - Beautiful but Deadly (solos @ 2:17 & 3:41)
Outkast - Funky Ride (solo @ 2:52)
Outkast - Chonkyfire (solo @ 2:52)
Outkast - B.O.B. (solo @ 3:01)
Outkast - Prototype (solo @ 2:59)
Rick Ross ft. Andre 3000 - Sixteen (solo @ 7:22)
BIG K.R.I.T. - Insomnia (solo @ 2:59)
Action Bronson - Easy Rider (solo @ 3:47)
The Dream - Falsetto (solo @ 2:26)
Kid Cudi - Pursuit Of Happiness (solo @ 2:38)
Hi-Tek ft. Dion, Bun B, Devin The Dude, & Pretty Ugly- So Tired (solo @ 4:08)
Nas - Sly Fox (solo @ 4:28)
Travis Barker ft. RZA, Raekwon, Tom Morello - Carry It (solo @ 3:00)
Kanye West - Devil In A New Dress (solo @ 3:12)
Kanye West - Gorgeous
Kanye West - Hold My Liquor (solo @ 3:47)
Childish Gambino ft. Chance The Rapper - The Worst Guys (solo @ 2:45)
MF Doom - Rapp Snitch Knishes (no solo but electric guitar notes all along the song)
Noir Fluo - Poison (french rap) (solo @ 3:00)
Sully Sefil ft. Dayron Ferguson, Bang Bang & Aaron Matts (french blend of rap, raggamuffin and metalcore) (solo @ 2:47)

and one R&B :
The Weeknd - Shameless (solo @ 2:52)