It was Tiziano!
They had him on the phone for a few minutes. Couldn't really understand much of what was said unfortunately, but it was definitely a lot of the same old stuff, like how they met, working together, etc. And Baby K talked about the rap scene and her life story.
And Tiziano was calling from a recording studio! Didn't say what he was doing though.
They played Una seria, Sei sola, Il tuo boy č preso male and Killer.