Coachella turned 15 over the weekend and it brought out some heavy hitters to help celebrate its birthday. From Arcade Fire to Zedd, here are some of the highlights from the weekend festivities:

DAY ONE

Most expected: A$AP Ferg

When at an A$AP Mob show, expect a hardcore crowd. This one was no different, which was probably helped along by multiple crowd-surfing attempts by the rappers on stage.

Also, toward the end of Ferg's set, he and his crew covered "Wild for the Night" and he went on the mic and said "Shoutout to my brother A$AP Rocky, who couldn't be here today" -- and then lo and behold, the A$AP brand's most famous name showed up later, though debuting new material no less.

Most unexpected: Flume

Confession: I hadn't looked up Flume's live sets before, so when the lanky Aussie took the stage and just started killing it, it was both surprising and amazing. Seriously, do yourself a favor and check his set out.

Most consistent: Girl Talk

Greg Gillis technically does one thing but he does it so well that years after he first broke out as a musician, he's still on that confetti party grind. That said, perhaps it's time to lose the toilet paper blowers.

Best on-stage synergy: HAIM

Este, Danielle and Alana are probably the cutest siblings in music today (sorry, Disclosure brothers), but when these SoCal gals start to jam, it's really something else. There's a reason why Julian Casablancas basically told Danielle to form a band and release an album -- that girl can shrrrrred.

Most... okay?: OutKast

A lot of people I talked to were very casual OutKast fans at best, and this reunion set definitely wasn't for them. The duo did eventually hit tunes like "Roses" and "Miss Jackson" during their headlining run, but though both Andre 3000 and Big Boi sounded alright individually, something between the performers and the crowd never clicked. A shame, especially for the older and more devoted fans in the audience.

DAY TWO

Most likely to become Supreme: Banks

One might think that L.A. songstress Banks just kind of stands there and sings, but naw, she can get down with the best of them, all while channeling some witchy vibes in a flowing all-black ensemble and a killer hat.

Best dancing: Future Islands

Singer Samuel T. Herring sounded pretty normal when he was chatting up the crowd before the band's set, but once the band started, he turned into a mad-eyed version of himself, running, kicking, and beating his chest all over the stage. 

Biggest fashion risk: Kid Cudi

A crop-top AND knee-length jean cut-offs? Sure, the dude looks good (his movie career, on the other hand...), but that's the kind of outfit that probably belongs back in the past. 

Coachella MVP: Pharrell Williams

What hasn't Pharrell does this year? Grammys, Oscars, and now Coachella -- though halfway through his set, the night's dust storm was clearly taking a toll on Williams, who had the crowd sing "Get Lucky" because his voice was done. Lest you think that meant the end of his set, which included Snoop Dogg/Lion and Gwen Stefani as guests, he hosted a "Happy" dance party right at his wrap time, bringing up Lorde and Este Haim from the audience to get down on stage.

Best debut: Lorde

The Kiwi wondergirl didn't disappoint during her Coachella debut. The huge desert crowd roared when she came onstage, and not only did she sound on point, she's clearly learned how to harness her spasmy dancing into a distinct stage presence. Also, she looked fly as hell.

DAY THREE

Biggest "what the...": Chance the Rapper

Justin Bieber popped by Chance's set in order to dance on stage while wearing a bucket hat (ScHoolboy Q owns that, man), and it was kind of like... huh. Guest appearance: you aren't doing it right.

Chillest vibe: Blood Orange

Dev Hynes looked like a G and sounded amazing during his Coachella set, which was happening right as the sun was starting to cool down. It was the perfect cool down music, augmented by additional vocals from guests like Caroline Polachek.

Rowdiest crowd: Flosstradamus

As I was checking into the festival, people kept talking about Flossy, Flossy, Flossy. So when it came time for the duo's set, naturally, everybody converged on that tent -- and when the beat drop, you could feel the festival grounds shake (that was probably the bass, but still).

Most "of course": Lana Del Rey

The originator of this new wave of flower crown fashion, Del Rey had the most shriekish reception of the entire weekend as an entire legion of young women received their soft grunge messiah. To be fair, Del Rey sounded fine, and has clearly finessed her performance style. Still... if you don't want to be surrounded by crying teenagers during a show, maybe steer clear of this one.

Best costumes: Arcade Fire

The Canadian band took the Haitian death themes from "Reflektor" and brought them to life (no pun intended) in their over-the-top festival-closing set. From their mirrored "Friend" crowd figure to the reflecting panels behind the band, everything was in-your-face and flashy, especially the elaborate costumes that the band wore. (Side note: I have a shirt in the same print as Win Butler's pants, so I'm all about those outfits.)

OVERALL

Best guests: Take your pick. Seriously. This guest thing is getting out of control.

Beyoncé at Solange! Jay Z at Nas! Bieber at Chance! Future at OutKast! Busta Rhymes at Girl Talk! Everybody at Pharrell! At this point, stay long enough at a set and something ~*surprising*~ will happen.

Coolest trend: Amazing signage

Giant cardboard cutouts of everybody from CHVRCHES' Lauren Mayberry to Vladimir Putin's faces graced the Coachella crowds this year. 

Worst trend: White people with "bindis"

NOOOOOOOOOPE.

Best/worst trend?: GoPros 

Pro: people now have the ability to take high quality photos and video on these tiny little cameras, which might be bad for the festival but is a boon for live music fans.

Con: those things are annoying as hell when they're up in your face. 

--

Coachella Weekend 2 runs from April 18-20.

Reach Music Editor Lilian Min here; follow her on Twitter and Google+.