Claymates, rejoice: “American Idol” alum Clay Aiken heads for Broadway this spring, stepping into a role in the Rialto production of “Monty Python’s Spamalot.”

Aiken, who placed second in the second season of “Idol,” will play Sir Robin, the part originated by David Hyde Pierce.

“Idol” vets have shown up on Broadway with increasing regularity. Fantasia Barrino, currently starring in “The Color Purple,” gave that tuner a major box office boost and won critical praise when she took over the lead role in April. Tamyra Gray appears through Nov. 25 in “Rent” (in which Frenchie Davis also has appeared), and Diana DeGarmo has done stints in “Hairspray.”

Aiken, whose fan base has been the subject of a short-lived Off Broadway musical, has a loyal following similar to Barrino’s — although whether Aiken acolytes and Monty Python enthusiasts overlap to the extent that fans of Barrino and “The Color Purple” do remains to be seen.

Aiken’s limited engagement in “Spamalot” runs Jan. 18-May 4.