Janet wrote, produced and arranged "Black Cat". Jellybean Johnson co-produced. I would also like to point out that Janet gives credit to Jimmy Jam and Terry Lewis on all her songs Control - All for You (excluding "Black Cat") in writing and production because they're a team. Jimmy Jam also still credits Terry Lewis even though he didn't participate on the creation process of 20 Y.O. I know Janet wrote many of the songs on TVR alone but gave credit to Rene and J&L for their ideas. I know (based off interviews) Janet wrote New Agenda, That's The Way Love Goes (in her room at Jimmy Jam's house) and Together Again (at hotel in Europe). Sorry, to ramble on but I know many people think Janet didn't write her own songs just because J&L are credited.