Singles, S.I Unit – Viva feat. OBJ by Trey October 7, 2013, 10:01 am Listen to the single and you can download below. Comments Christian Hip HopChristian RapOBJS.I Unit Written by Trey I'm Trey. I'm a follower of Jesus and a huge fan of Christian Hip Hop and Rap. USAF. NewH2O Contributor since September 2013. Grind doesn't stop! One Comment Leave a Reply Yall should listen!!!! Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.