Forget the Rachel/Finn/Quinn love triangle. The big controversy about tonight's second-season finale of "

" is whether the show swiped an arrangement from

, a

a cappella group.

It all started with a May 19 post a New York City blogger named Alex Rabinowitz put on his blog,

. Talking about songs that will be featured in the "Glee" season finale, Rabinowitz noted an all-female, a cappella version of

hit, "Yeah!"

"The cover is a rousing, empowered track, especially when sung by a female group," Rabinowitz wrote. "All this would have been fine and dandy, if it weren't seemingly ripped off a hardworking, student-run collegiate a cappella group."

He was referring to a similar-sounding arrangement of the song performed by Divisi, the all-female UO a cappella group. When they performed "Yeah!" in 2005, the then-members of Divisi narrowly missed winning the International Championship of Collegiate A Cappella in New York. They placed second, a result that has become legendary within the a cappella community as an example of a deserving group getting robbed.

As Rabinowitz writes in an email, "I've been following Divisi since I first saw them perform at their now-infamous shot at the 2005 (championship) at Lincoln Center. Their version of 'Yeah!' blew everyone away and literally changed the game for all-female groups. (That whole story was later documented in Mickey Rapkin's book, 'Pitch Perfect: The Quest for Collegiate A Cappella Glory.') As a fan of a cappella, a song like that you don't forget."

(The clip below features Divisi performing their version of "Yeah!" at by Usher at the ICCA Semifinals in 2005.)

Though the women who were in Divisi in 2005 have since graduated, plenty of people still remember that performance and that arrangement. As Rabinowitz's post made the rounds online, members of the a cappella community were up in arms, accusing "Glee" of stealing the Divisi arrangement without credit or compensation.

On Friday morning, Rabinowitz put up another post about the controversy, which was picked up by

and

and made it to the front page of

. "In total, the two posts on my site have received 8,565 page views," Rabinowitz writes.

Discussions on Facebook about the matter got the attention of Ed Boyer, a former member of the Beelzebubs, the Tufts University a cappella group. Boyer has arranged and co-recorded a dozen songs for the fictional group the Warblers on "Glee." Boyer sent an email to "Glee" producers about the situation developing around "Yeah!" and, Rabinowitz writes, Boyer "reported back in the afternoon on Friday that the problem has been rectified" and that Evynne Hollens, the founder and former member of Divisi, will receive credit for her arrangement.

who's married to Evynne and recorded and produced the 2005 Divisi recording of "Yeah!," says this hubbub spotlights the gray areas of a cappella and copyright laws.

"I asked lawyers in the a cappella community about it," says Hollens, who has an extensive background in a cappella. Hollens co-founded the UO all-male a cappella group

when he was a student at the university. Both Hollens and Evynne graduated in 2006; they married in 2007.

Unless an a cappella group gets permission from the original artist, which Hollens says "just doesn't happen," the arrangement isn't covered by any copyright or legal protection.

So even though the version of "Yeah!" recorded for "Glee" is, as Hollens says, "extraordinarily identical to the arrangement my wife wrote, it doesn't matter, because the original song is still by Usher."

Hollens knows Boyer, and they were in touch about the matter of crediting Evynne for her arrangement. According to Boyer, it sounded as if "they had gone through some communication breakdowns" at "Glee." "They usually like to give credit to the original arrangers."

Now, Hollens says, "Evynne and Divisi are getting credit for the arrangement. (The 'Glee' producers) seem genuinely interested in doing the right thing."

Mercedes McCormick, assistant business manager for and a member of the current lineup of Divisi, says the group had hopes of being involved in "Glee." Representatives from the show had contacted Divisi, she says, about three weeks ago, saying "'Glee' might want to use our version of 'Yeah!' for an episode."

After that initial contact, however, a follow-up call from "Glee" representatives came, saying, "we're going to go in a different direction," says McCormick.

Though there was talk about paying Divisi for the arrangement, the group has received no money, she says.

Hollens says Evynne will receive a small arranging fee for the song.

"Me and my wife are huge fans of 'Glee,'" he says. "The show has been so good for and so influential to the a cappella community. It's cool to see them doing something so close to home."

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