I disagree with the "ROCKIN' VALUE" label, since the dolls have very plain dresses, and the microphones go essentially nowhere. The set is $35 at Wal-Mart.
The prototype and production dolls have completely different fashions. The budget must have been slashed at the last minute. There's a prototype pic of Sasha, but I didn't see one in the store.
(ETA:It looks like there are two more versions of this set. They both have the prototype clothes, one of the two comes with hair extensions instead of the electronic toy. Guaranteed to cause heartache on Christmas day.)
ETA 2: Bratz on the Mic Boyz
I love all of Jade's red hair, but it's way out of my price range.
Bratz On the Mic dolls are Cloe, Jade, and Yasmin.