Of all James Corden's many Carpool Karaoke videos [1], few were as entertaining as his ride with Jennifer Lopez [2]. In one of the segment's funniest moments, James sent a hilarious text [3] to Leonardo DiCaprio [4] from Jennifer's phone asking about where she could "cut loose" that night. His response — "You mean tonight, boo boo? Club wise?" — immediately went into the Carpool Karaoke Hall of Fame, and the "Feel the Light" [5] singer revealed how Leo reacted to the prank while sitting down with James on Thursday night. "He wasn't mad at all! I was afraid he would be mad when it all came out, but he was so cool about it," she assured him. "I guess he calls every girl boo boo, I don't know."