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Kelly Ripa and Live! With Kelly guest co-host Jerry O'Connell went all out for Halloween Monday.

Ripa and O'Connell channeled Hamilton for their holiday special, but the show's introduction also included special appearances from Matt Bomer and Corbin Bleu. Singing an original song about "Kelly's Halloween," O'Connell, Ripa, Bomer and Bleu gave audiences a one-of-a-kind performance.

Afterwards, however, Ripa and O'Connell dressed as Spice Girls with a special introduction from past guest co-host Anderson Cooper. Ripa and O'Connell competed for the best "Wannabe" Spice Girl, who would get the opportunity to tour with the famous girl group. The CNN anchor judging the competition.

"I'm totally viral in a good way," said O'Connell during his interview.

The winner of the Spice Girls competition would be announced at a later date.

Andy Cohen also made an appearance on Monday's show, taking on the role as a Family Feud host. The contestants however, were Ripa as Donald Trump and Ivanka Trump. O'Connell starred as Hillary Clinton

The fully loaded special also featured Ripa as Beyoncé from the Lemonade video. O'Connell played the director who had the responsibility of holding up a fan to her constantly wind-blown main.

But in honor of the ongoing co-host search, previous guest co-hosts, including Josh GrobanChris HarrisonKen JeongJussie Smollet and Neil Patrick Harris, appeared as Bachelor contestants.

O'Connell and Ripa also dressed as Pikachu and and Ash, respectively. Michael Strahan also dressed as Pikachu on Good Morning America. Later in the episode Ripa and O'Connell spoofed DNCE's "Cake by the Ocean" by having all her guest co-hosts do a dance while throwing cake at each other. They also dressed as Suicide Squad's the Joker and Harley Quinn.

What do you think of the costumes? Sound off in the comments.