One reviewer called the Baraboo band the "Wu-Tang Clan equivalent of indie baroque-pop."

Originally, the members of Baraboo seven-piece band PHOX were planning to go to Lollapalooza in Chicago to see some friends and check out some bands.

Instead, they found themselves on stage, performing a hastily scheduled set for a few hundred fans at noon on Saturday. When rapper Azealia Banks had to cancel her set for illness, festival bookers turned to PHOX to fill the gap.

"Huston Powell is the buyer and is an old friend," manager Christian Greene told the Milwaukee Journal-Sentinel on Saturday. "I beat him up pretty good and said, 'You've got to book (PHOX), they're in town, you've got to do it.' And he said if somebody drops off, he would find a way."

Noontime sets at Lollapalooza are often sparsely attended, as the big crowds (an estimated 270,000 over three days) tend to dribble in in the mid- to late-afternoon.

But, despite the early time and late announcement, PHOX did attract some fans for what sounded like a well-received set.

"PHOX made the most of the Lolla opportunity with a whimsical, infectious 30-minute set, created with a cacophony of instruments, including guitar, banjo and clarinet, and topped off with Monica Martin's charming vocals," Piet Levy wrote in the Journal-Sentinel.

Evan Clark of BestNewBands.com liked the set even better. "PHOX appeared prepared and truly happy to be there," he wrote. "Lead singer Monica Martin was the conductor of smiles for this Wu-Tang Clan equivalent of indie baroque-pop, providing a soulful blend of Feist and Norah Jones style vocals over an array of instruments ranging from banjos to clarinets. It appeared as if every member of PHOX plays at least two different instruments, in fact, bassist Chester Van Huss frequently switches off from bass, to clarinet, to flute whenever the occasion calls for it."

Here's a sampling of comments, photos and videos from fans on Twitter:

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