Beyonce - Crazy in Love (2003)
I was wondering how to classify this, modern R&B, R&B/Hip Hop but then I listened to it again. Taking out the rap, this song is a straight up 70s R&B tune. Horns, backup vocals, lyrics about the singer so in love with the subject that they are driven crazy, desperately trying to convince them to come back. I love the drums too, lots of rhythmic high hat/ride. Jay-Zs rap is well known, not his most lyrically impressive, though he does manage to throw in a reference to one of The Beatles and mention chinchilla fur.