글리 Series Finale: The Best Cameos and Callbacks 

More Food More Pets More Red Carpet More TV Watch More Unfiltered More Country

PEOPLE Reporter\'s Week with Quadruplet Dad And Newborns

Watch These Corgis Race to Choose the Royal Baby\'s Name!

David Beckham on His Kids: \'I\'m Literally an Uber Driver Now\' (VIDEO)

The Style Top 5: The Hair Style You\'ll Never See Jennifer Aniston Wear and More

See How Muhammad Ali Welcomed Prince Charles and Camilla to Louisville

Where Did Princess Kate Take George for a Mommy-and-Me Outing?

Bruce Jenner\'s Transition a \'Really Hard Pill to Swallow\' for Ex-Wife Kris: Source

10 Surprising Discoveries About Michelle Obama from Her New Biography

Ryan Reynolds Reveals Daughter\'s Real Name

President Obama to Prince Charles: Americans Love the British Royals

Many faces have passed through the halls of William McKinley High School.

\'s series finale Friday, an impressive number of the show\'s alums – not to mention some of its more memorable fashion fads and cultural touchstones – appeared in Lima for one last song and dance.

Here are a few of the highlights from the welcome returns, quirky character traits and celebrity cameos from

Everyone in the "I Lived" numberMike Chang (Harry Shum Jr.)! Sugar Motta (Vanessa Lengies)! All those

kids! The series-closing musical number had nearly everybody – old, new and in between. It also featured the only finale appearance of wives Brittany (Heather Morris) and Santana (Naya Rivera). A shame they didn\'t have more to do (most likely Lord Tubbington is to blame), but we\'ll take whatever Brittana we can get.

"A Young, Nubile Will Schuester"We got several glimpses of a very handsome, high school-age Will Schuester (played as an adult by Matthew Morrison). Before he rapped, the young Mr. Schue tore up McKinley\'s auditorium with energetic performances of The Trammps\' "Disco Inferno." Is it possible we kind of want a Will Schuester spin-off?

KarofskyBefore he was a suicidal closeted jock, before he was briefly Blaine\'s (Darren Criss) fallback boyfriend, Karofsky (Max Adler) was a lunkhead jock who tormented Kurt (Chris Colfer). Adler made bookend appearances early in the first episode and then in the final group performance, underscoring the journey the show and all its characters have taken these past five years.

Kurt\'s Bias-Cut Turtleneck SwonchoThat would be a sweater and a poncho. Among Kurt\'s truly questionable fashion decisions, the oatmeal-colored hybrid garment might be the most outstanding – that\'s both a compliment and an insult.

Terry SchuesterThough she was a regular cast member for only two seasons, Jessalyn Gilsig made an art of Terry\'s awfulness. She featured heavily in the first hour of the finale, a flashback episode called "2009," and we probably could have used less of her – which means Gilsig did her job.

Rachel\'s Bushy EyebrowsRachel Berry (Lea Michele) wasn\'t always a Broadway baby. When the series began, she was just a homely girl with a huge voice – and pretty sizable eyebrows. The show\'s makeup artists really played up Rachel\'s brows in "2009," which was at turns hilarious and totally characteristic of the driven yet oblivious Rachel of season 1.

, Rannells showed up for his former boss Ryan Murphy, playing himself and presenting a Tony Award to Rachel for starring in

. (Honorable mention to Rachel\'s competitors: Maggie Smith in

Dijon TaltonWe always had a soft spot for Mike Chang\'s dancing partner Matt Rutherford (Talton). Anyone else?

SlushiesHow long has it been since the red beverages appeared on the show? Too long.

runner-up interviewed U.S. Vice President Sue Sylvester in a flash-forward.

MyspaceThe year was 2009. Twitter was barely out of the nest. Rachel Berry was obsessed with Myspace as a means of shameless musical self-promotion.

Finn Hudson One callback that was much less lighthearted than others, it had been an open question how the writers would honor Cory Monteith\'s work on the show. By seamlessly including archival footage from the New Directions\' first performance of Journey\'s "Don\'t Stop Believin\'," they chose a route that was both narratively and emotionally satisfying. (Monteith was also featured in a goofy photo Kurt kept in a locker of all his glee club memorabilia – a detail that felt like a subtle tribute to the actor himself, not just his character.)

RELATED: Read the full series finale recap and our complete ranking of the episodes\' songs.

How Many Tracksuits Did Jane Lynch Request from Her

Watch Ariana Grande Do a Killer Celine Dion Impression on

Hilary Duff Celebrates Son Luca’s Birthday with Adorable Instagram Album

See the Best Celeb Food Photos of the Week from Drew Barrymore, Adam Levine & More

California Woman, 72, On Trial for Killing Another Husband

Please enable JavaScript to view the comments powered by Disqus.

Star Claire Coffee Talks Cravings and Maternity Clothes

Kelly Rowland, Gigi & Cody, Gerard Butler and More!

Bite Size: What Your Favorite Stars are Eating & Drinking Right Now

The It Sandal for Spring Is Also the Most Comfortable Sandal Around

Celebrate National Fragrance Day With the Best Spring Scents to Try

Video Diary with an Insider Look Backstage

See Which Stars Have Cooked Up a Storm in Culinary School

Why Maksim Chmerkovskiy and Kirstie Alley Aren\'t Speaking

Chris Pratt Flashed Amy Poehler?! Hear His Take – And See Her Reaction

Thank you for signing up! Your request may take up to one week to be processed.