When they signed their contract with Farian, they had no idea at all that they would be lip syncing. When they found out, Rob was pissed and confronted Farian, who threatened legal action against them if they didn’t complete the contract. They weren’t “in on it”, they were coerced into going along with it.
They were absolutely in on the scam. I agree that Farian is the most to blame, though.
When they signed their contract with Farian, they had no idea at all that they would be lip syncing. When they found out, Rob was pissed and confronted Farian, who threatened legal action against them if they didn’t complete the contract. They weren’t “in on it”, they were coerced into going along with it.