A group of 15 students huddled in a circle last week, dancing, swaying their arms and belting out songs by pop artists such as Flo Rida, Goo Goo Dolls and OneRepublic. They occasionally burst out laughing, cracked jokes mid-song and munched on snacks.

This scene might sound like a description of a Friday night party winding down at a friend's apartment, but in actuality, it was a practice session for None of the Above, the oldest co-ed a cappella group at Penn State.

The group will be performing a free concert at 3 p.m. Sunday in 105 Forum to coincide with the release of its latest CD, titled You Don't Even Know.

None of the Above (NOTA) is composed entirely of undergraduate students -- sopranos, altos, tenors, bass and even a "beatboxer" -- and is also managed and directed by students.

"We arrange all of our music, we run the group every year and we put together a CD every year," said Michael Beck (senior-finance), the group's business manager.

Beck, who has been a member of NOTA for three years, said this year's group is particularly gifted in comparison to past incarnations.

He said this is the first year every member of the group has a solo in the upcoming concert and pointed to the increase in musical arrangers within the group.

"Historically, there used to be only two people who would arrange," Beck said. "But this year, we've had a lot more musical talent, so I'd say there are five or six people who actually arrange songs."

At practice, Miranda Hitchcock (junior-engineering science), the group's musical director, led the group through a number of vocal warm-ups in which she shouted different orders, such as "switch to minor," on the spot.

"So what do we need to think about for this one?" Hitchcock asked rhetorically before beginning a medley, with the other members chiming in.

On occasion, Hitchcock stopped a song halfway through to note a certain vowel was "all over the place" or to remind the singers to listen to their specific parts that are posted on ANGEL. But the group remained upbeat and didn't let the minor mistakes bother it.

"Our chemistry on stage sets us apart from other a cappella groups," said Alyssa Ketterer (senior-journalism), an alto in the group. "We have a lot of fun, and we're pretty laid-back."

You Don't Even Know, which took more than 40 hours to record and produce, is evidence of the group's long-standing musical diversity, featuring genres such as modern hip-hop, '90s pop-rock and indie rock. There's even a version of the Disney classic "A Whole New World" from Aladdin.

The CD will be available at Sunday's concert.

NOTA formed in 1991 when a graduate student who came to Penn State noticed there was only one a cappella group on campus.

Since then, the group has performed at locations including Wisconsin, New York, Maryland and competitions all over Pennsylvania.

But NOTA's home at Penn State has certainly not been forgotten, as it has performed at lesbian, gay, bisexual, transgender community and its allies (LGBTA) events, tailgates and drug awareness concerts at fraternities. The group has also performed at the Interfraternity Council/Panhellenic Dance Marathon in recent years.

Hitchcock said the group, which she refers to as a "jack of all trades," even performed at a Penn State student's birthday in 2006, after the parents of that student hired NOTA to sing because they wanted their son to get back into a cappella.

"(NOTA) is a group that cares a lot about music, but cares even more about having fun and enjoying life," Hitchcock said. "If there's one thing that's made NOTA great and carried it through the past 17 years, it is the laughter and the jokes and the fact that there's never a dull moment."