Im a big fan of MOP. I have all their albums except the last one.
Nearly every time they appear on another artists song, the song is usually a stand out on the album. Here is a few examples:
*Important*
These tracks are tight, so i suggest you download them if you have never heard them
Who Got Gunz-Gangstarr feat M.O.P and Fat Joe
http://rapidshare.com/files/53661595/10_-_Gang_Starr_-_The_Ownerz_-_Who_Got_Gunz__feat._Fat_Joe___M.O.P_.wma
No Mercy-Pharaohe Monch feat M.O.P
http://rapidshare.com/files/53663186/08_No_Mercy.mp3
Half and Half-Gangstarr feat M.O.P
http://rapidshare.com/files/53664183/Gang_Starr_-_M.O.P._-_1-2___1-2.mp3
B.I Vs Friendship-Gangstarr feat M.O.P
http://rapidshare.com/files/53665141/Gang_Starr_-_M.O.P._-_B.I._Vs._Friendship.mp3
U Don't Know (remix)-Jay-Z feat M.O.P
http://rapidshare.com/files/53666270/03_U_Don_t_Know__remix_.mp3
Stompdashitoutu-CNN feat M.O.P
http://rapidshare.com/files/53667037/C.N.N._-_M.O.P._-_Stompdash--outu.mp3
BK To La-Xzibit feat M.O.P
http://rapidshare.com/files/53667970/10_BK_to_LA.mp3
N.Y Giants-Big Pun feat M.O.P
http://rapidshare.com/files/53670086/Big_Punisher_-_M.O.P._-_New_York_Giants.mp3
Jealousy-Kurupt feat Roscoe and M.O.P
http://rapidshare.com/files/53670884/06-kurupt_roscoe_and_m.o.p.-jealousy-c4.mp3
Fight Club-Fat Joe feat M.O.P and Petey Pablo
http://rapidshare.com/files/53671393/Fat_Joe_ft_MOP___Petey_Pablo_-_Fight_Club.mp3
Watch Out-Tephlon feat M.O.P
http://rapidshare.com/files/53671916/The_Marxmen_-_Watch_out.mp3
Ready For War-Busta Rhymes feat M.O.P
http://rapidshare.com/files/54104141/Busta_Rhymes_feat_MOP_-_Anarchy_-_Ready_for_War.mp3
Let It Bang-X-Ecutioners feat M.O.P
http://rapidshare.com/files/54107546/X-Ecutioners_ft_MOP_-_Let_it_Bang.mp3
Know Da Game-Mobb Deep feat Kool G Rap and M.O.P
http://rapidshare.com/files/54531205/Mobb_Deep__Kool_G_Rap__MOP_-_Know_da_game.mp3
Y'all Don't Wanna Fuck-Styles P feat M.O.P
http://rapidshare.com/files/54109139/18_Y_all_Dont_Wanna_Fuck__Feat._M.O..mp3
Keepin It Gangsta (Remix)- Faboulous feat Styles P, Jadakiss, M.O.P
http://rapidshare.com/files/54549610/Fabolous_-_Street_Dreams_-_19_-_Keepin_It_Gangsta__remix__feat._Jadakiss__Styles_P__and_MOP_.mp3
The Mastas-Freddie Foxx feat M.O.P
http://rapidshare.com/files/54550750/Freddie_Foxxx_AKA_Bumpy_Knuckles_-_The_Mastas_feat._MOP.mp3
On The Run-Mos Def feat M.O.P
http://rapidshare.com/files/54551445/MOP_feat._Mos_Def_-_On_The_Run.mp3
Nearly every time they appear on another artists song, the song is usually a stand out on the album. Here is a few examples:
*Important*
These tracks are tight, so i suggest you download them if you have never heard them
Who Got Gunz-Gangstarr feat M.O.P and Fat Joe
http://rapidshare.com/files/53661595/10_-_Gang_Starr_-_The_Ownerz_-_Who_Got_Gunz__feat._Fat_Joe___M.O.P_.wma
No Mercy-Pharaohe Monch feat M.O.P
http://rapidshare.com/files/53663186/08_No_Mercy.mp3
Half and Half-Gangstarr feat M.O.P
http://rapidshare.com/files/53664183/Gang_Starr_-_M.O.P._-_1-2___1-2.mp3
B.I Vs Friendship-Gangstarr feat M.O.P
http://rapidshare.com/files/53665141/Gang_Starr_-_M.O.P._-_B.I._Vs._Friendship.mp3
U Don't Know (remix)-Jay-Z feat M.O.P
http://rapidshare.com/files/53666270/03_U_Don_t_Know__remix_.mp3
Stompdashitoutu-CNN feat M.O.P
http://rapidshare.com/files/53667037/C.N.N._-_M.O.P._-_Stompdash--outu.mp3
BK To La-Xzibit feat M.O.P
http://rapidshare.com/files/53667970/10_BK_to_LA.mp3
N.Y Giants-Big Pun feat M.O.P
http://rapidshare.com/files/53670086/Big_Punisher_-_M.O.P._-_New_York_Giants.mp3
Jealousy-Kurupt feat Roscoe and M.O.P
http://rapidshare.com/files/53670884/06-kurupt_roscoe_and_m.o.p.-jealousy-c4.mp3
Fight Club-Fat Joe feat M.O.P and Petey Pablo
http://rapidshare.com/files/53671393/Fat_Joe_ft_MOP___Petey_Pablo_-_Fight_Club.mp3
Watch Out-Tephlon feat M.O.P
http://rapidshare.com/files/53671916/The_Marxmen_-_Watch_out.mp3
Ready For War-Busta Rhymes feat M.O.P
http://rapidshare.com/files/54104141/Busta_Rhymes_feat_MOP_-_Anarchy_-_Ready_for_War.mp3
Let It Bang-X-Ecutioners feat M.O.P
http://rapidshare.com/files/54107546/X-Ecutioners_ft_MOP_-_Let_it_Bang.mp3
Know Da Game-Mobb Deep feat Kool G Rap and M.O.P
http://rapidshare.com/files/54531205/Mobb_Deep__Kool_G_Rap__MOP_-_Know_da_game.mp3
Y'all Don't Wanna Fuck-Styles P feat M.O.P
http://rapidshare.com/files/54109139/18_Y_all_Dont_Wanna_Fuck__Feat._M.O..mp3
Keepin It Gangsta (Remix)- Faboulous feat Styles P, Jadakiss, M.O.P
http://rapidshare.com/files/54549610/Fabolous_-_Street_Dreams_-_19_-_Keepin_It_Gangsta__remix__feat._Jadakiss__Styles_P__and_MOP_.mp3
The Mastas-Freddie Foxx feat M.O.P
http://rapidshare.com/files/54550750/Freddie_Foxxx_AKA_Bumpy_Knuckles_-_The_Mastas_feat._MOP.mp3
On The Run-Mos Def feat M.O.P
http://rapidshare.com/files/54551445/MOP_feat._Mos_Def_-_On_The_Run.mp3