Clay Aiken as Spamalot's Sir Robin
01/17/2008 AT 11:15 AM EST
It may be a long leap from Raleigh, N.C., to the kingdom of Camelot – with a memorable stop on American Idol
in between – but Clay Aiken
is apparently ready to take his seat as Sir Robin at the Round Table. The singer, 29, officially joins the cast of the Tony-winning Monty Python musical Spamalot
on Friday, having told Newsweek
that he was so sore from the arduous rehearsals to prepare for his Broadway debut
that he "couldn't even get off the toilet the other day."
It will remain to be seen if Aiken's acting and dancing can measure up to his singing, CD-selling (6 million) or even his candor – as well as who's really tougher, Simon Cowell or New York theater critics. Aiken is due to remain with the show through May 4.
– Stephen M. Silverman