Truett McKeehan (a.k.a. TRU, f.k.a. Tru-Dog) is the son of Christian Hip-Hop/Pop pioneer . Truett has appeared with his dad in all of his albums, mostly under the name Tru-Dog, since he was 2 years old on short tracks. It was until tobyMac’s album that he went under the name TRU and was featured on the song , where Truett talks about being 16 and driving.
TruDog is the stage name for Truett McKeehan, as appears in some of albums. He is Toby McKeehan's son, and thus appears on most of tobyMac's albums.