Eyes on 'Spamalot,' 'Piazza.'

The best musical win for "Monty Python's Spamalot," at the 2005 Tony Awards June 5, has retailers predicting big spikes for the show’s cast recording.

The Decca Broadway/Universal Classics Group album, which features stars Tim Curry, Hank Azaria, David Hyde Pierce and Sara Ramirez — who won the Tony Award for best featured actress in a musical—is already the fastest-selling and highest-charting Broadway recording since 1996’s "Rent."

The set debuted and peaked at No. 69 on The Billboard 200. Released May 3, it has sold 49,000 copies, according to Nielsen SoundScan. "It's been selling extremely well and since the awards, it's tripled from last week's sales," says Musicland spokeswoman Laurie Bauer.

TransWorld Entertainment's digital merchandise manager Jerry Kamiler says the title should double in sales for the chain and predicts the same outcome for the Nonesuch soundtrack, "The Light in the Piazza."

"Piazza" was the evening's biggest winner, taking home six statues including best score for composer Adam Guettel. The title has sold 7,000 copies in the United States since its May 24 release.