CBS's "Late Late Show" host James Corden's wildly popular "Carpool Karaoke" segment has attracted literally dozens of great singers. And now, Barbra Streisand gets a chance to warble in the SUV with Corden, the ultimate fanboy for all these performers. Here's a little sample of what you can see on Corden's show Thursday night at 12:30am. All I can say is thank goodness for YouTube!