Oh that's not the Tamika I use. I have no idea who that one is, haha.
Tamika is a friend I met in the rave scene when I first started DJing. Most of the singers I've used are just friends who wanted to sing and be in a track. I think I've only ever used 1 or 2 professional singers but again, they were friends. More recently it's been a similar story but more worldwide and usually people I've never even met except online.