Heather Rae and Tarek El Moussa are opening up about welcoming their son into the world. The stars previously revealed their newborn son’s name is Tristan Jay El Moussa, but on Wednesday, they gave new insight into the sweet meaning behind the moniker. «Tristan was the name that Tarek was supposed to have, Jay is my dads middle name & 4 generations of Jay,» Heather wrote on Instagram. The proud mom also shared the little guy was born on Jan.