R&B/Hip-Hop songs.....?

Now I really like this song called Neva get enuf by 3LW feat. Lil Wayne and I was wondering if theres any songs like it. You know the guy raps and the girls sing or it can be the other way around. For example I'm grown by Tiffany evans feat. Bow wow. I'll be loving you long time by Mariah Carey feat. T.i. it can be slow love songs or have a fast beat like Killa by Cherish and Yung Joc