This is her best album, thanks to R. Kelly's genius, but it's still not an amazing well-rounded project. It's fairly hit or miss for me. The best will never get old, but everything else isn't anything I go back to. 'Old School''s rhythm borrows heavily from The Isley Brother's 'Between the Sheets' making that instantly catchy and the other classics are listed below. If you compare Aaliyah to her mentor, the voice is lacking. A lot of R. Kelly songs build up and allow him to share his brilliant vocal range (see 'When a Woman Loves' or 'I Believe I Can Fly') but Aaliyah's doesn't seem to stretch very far. I've thought the same thing with her two follow up albums. Best Tracks: Back & Forth, Age Ain't Nothing but a Number, At Your Best (You Are Love), Old School