Gary Clark Jr.

John Legend and Chrissy Teigen are dropping a bombshell in his new "Wild" music video -- they're expecting BABY NO. 3!!! The vid for "Wild" -- costarring Chrissy -- premiered Thursday and near the end of it, you can see her cradling her tummy. John's sensual track, featuring Gary Clark Jr., is one…

Gary Clark Jr. thinks he's Hansel and Kanye West is Derek Zoolander ... because he told us he could make runway-kill out of Yeezy in a model walk off. Our photog ran into the guitar great at the Grove in L.A. and threw out the the ridiculous, though appropriate, question -- he and Kanye are…