From 1987's "Keep Your Eye on Me" (spawned the hit "Diamonds"), here's trumpeter/flugelhornists Herb Alpert with the quiet storm classic "Making Love in the Rain." Lead vocals - Lisa Keith and backs - Janet Jackson.
From my boys, off the "Set It Off" soundtrack, here's Bone Thugs n Harmony with "Dayz of Our Lives." Herp Alpert sampled.
(Also "Tender Love" by the Force MDs sampled too.)
From "Black Reign", here's my jam!! off the this album, "Just Another Day" by Queen Latifah.
From the 2006 "Lifted EP", Queens vocals were sampled on "Another Day" by Blu & Exile.