I have no idea why this episode was called the All-Stars when only one of them is even worthy of the title, Mr. Crews. Olivia should not have been there, despite scraping a win against Kevin Hart in her episode. And, Phelps? He didn't compete until the All Star episode. He did a good job, but he should have gone against another Olympian on another episode before the All Stars. Ryan Lochte would have been the perfect opponent for him.
If I were casting an "All Star" episode of Lip Sync, Terry would certainly get called up, along with JGL, Hathaway, and either Tatum.