Seth MacFarlane and Jimmy Fallon classed up some Yahoo! Answers Tuesday night on "The Tonight Show." The "Family Guy" creator joined the late night host for their side gig as the Yahoo! Answers Lounge Singers, where the duo sat across from each other at adjoining pianos and sung real Yahoo! Answers that were submitted by actual people. Fallon and MacFarlane then answered a series of bizarre questions with the actual top answer on Yahoo! and put a jazzy spin on them all.

"What does TGIF stand for?" Fallon asked.

"The Goat Is Fed," sang MacFarlane in response.

"Are skeletons real?" Fallon sang while he banged on the piano keys.

"Contrary to popular belief, they're made of marzipan by the finest French confectionary chefs," replied the musically inclined MacFarlane.

With the holiday season fast approaching, both MacFarlane and Fallon answered a series of questions about Christmas and Chanukah. MacFarlane let everyone know through song that Chanukah was actually spelled "Chaka Khan" while Fallon answered a very important question about Santa Claus.

"How does Santa know when I'm sleeping?" Fallon asked.

"The same way peeping Toms know. He looks in your window. But when Santa does it, it's not weird," he replied.

Check out the full video below.