In the latest edition of Apple Music's Carpool Karaoke, Ariana Grande and Seth MacFarlane take on a Broadway classic: "Suddenly Seymour" from Little Shop of Horrors. But can you spot the special guest who may or may not have been beamed into their car during a total eclipse of the sun?

In addition to being a music superstar, Grande made her Broadway debut in Jason Robert Brown's musical 13, and recently starred in NBC's Hairspray Live! MacFarlane is the creator of the animated series' Family Guy, American Dad!, and The Cleveland Show.