'NSYNC? Boyz II Men? Celebs Pick Their Top Boy Bands!

'Jersey Shore' star Vinny Guadagnino, Monica, 'Glee' actress Dianna Agron and more weigh in on MTV's Battle of the Boy Bands.

With the Battle of the Boy Bands nearing the Final Four, things are getting pretty intense among fans who are furiously voting to keep their favorite groups in the race.

Along the way, we lost some of the early front-runners, including the Backstreet Boys, 'NSYNC, New Kids on the Block and Boyz II Men.

Just because the Boyz were knocked out in the second round of the competition doesn't mean they don't have their die-hard fans out there — among them "Glee" star Dianna Agron.

"When I was growing up, it was 'NSYNC, Backstreet Boys, 98 Degrees," Agron told MTV News of the late-'90s boy-band explosion. "I was so obsessed with Boyz II Men in fourth grade. 'Motownphilly' — so good, so awesome."

The R&B group is a favorite of Monica's as well. "My favorite boy band would have to be New Edition and Boyz II Men," she told MTV News. "I don't know if you consider these boy bands though, but they were just unbelievable."

Another popular choice was 'NYSNC, who made a shocking first-round exit when they lost in the final moments of voting to British boy band 5ive. Justin Timberlake and company ruled the charts (and the hearts of teen girls everywhere) in the late '90s.

"I would say 'NSYNC was my favorite boy band. They're amazing, they were so talented," former Danity Kane singer Aubrey O'Day said. "Obviously Justin came from that. We all know we were sweating Justin!"

Posters of Timberlake most certainly lined the walls of millions of fans, including Selena Gomez, who revealed to MTV News that her first crush was the former 'NSYNC member.

Of course, picking just one boy band isn't always easy, which was the problem for Roc Nation's newest member, British singer Rita Ora.

"My ultimate boy band, I have a few: Jackson 5, Jagged Edge — I love Jagged Edge," Ora said. " 'NSYNC, they were the ones, I swear."

But when "Jersey Shore" star Vinny Guadagnino picked his ultimate boy band, he opted for keeping it in the MTV family.

"I kinda liked 2ge+her," Vinny admitted. "I loved ['U + Me = Us']."

Voting for the Elite Eight in MTV's Battle of the Boy Bands runs until noon ET on Wednesday, May 2. Winners are determined by fan votes, so if your favorite band made the cut, make sure you keep voting. Tune in to AMTV and MTV Hits for their boy-band video takeovers each day and make sure to spread the word on Twitter using the hashtag #BBB and like us on Facebook for updates!

Vote for your favorite band, discuss and share on Facebook and Twitter in the MTV Battle of the Boy Bands interactive bracket!