But the jokes didn't end there. Sandberg then proceeded to pull out a baby music player and told the audience "she's sleeping."

"Wow! Yeah, what a sweetheart she is. She's so quiet,"

But the jokes didn't end there. Sandberg then proceeded to pull out a baby music player and told the audience "she's sleeping."

"Wow! Yeah, what a sweetheart she is. She's so quiet," O'Brien said.

"She's so sweet," Sandberg agreed before tossing his fake daughter over his shoulder.

"It looks like you got an easy baby there," Richter added.

"Oh! She's so mellow," Sandberg quipped, still trying to catch his breath from his shenanigans.

Watch the video to see Samberg's antics.