其實feat點解?? Akon Ft Snoop Dogg - I Wanna Love You

feat = short form of feature ; it's kinda smiliar to appearing / singing together when you are refering to a music video or a song..

you could say something like "Akon feature on Gwen Stefani's new album"; basically means that you are goin to hear Akon's voice in gwen stefani's new album... so Akon is a contributor to the album..